EP4168117A1

EP4168117A1 - Methods of treating thyroid eye disease and graves' orbitopahy using interleukin-17 (il-17) antagonists

Info

Publication number: EP4168117A1
Application number: EP21749387.3A
Authority: EP
Inventors: Gerard Bruin; Georges Jean KAHALY; Maximilian Reinhardt; Meryl MENDELSON
Original assignee: Novartis AG
Current assignee: Novartis AG
Priority date: 2020-06-23
Filing date: 2021-06-23
Publication date: 2023-04-26
Also published as: CN115812079A; WO2021262876A1; KR20230025890A; US20230235041A1; AU2021296436A1; BR112022026273A2; CA3187136A1; IL298882A; JP2023531497A

Abstract

The present disclosure relates to methods for treating Thyroid Eye Disease (e.g., Graves' Orbitopathy) using Interleukin (IL)-17 antagonists, e.g., secukinumab. Also disclosed herein are IL-17 antagonists, e.g., IL-17 antibodies, such as secukinumab, for treating patients having Thyroid Eye Disease (e.g., Graves' Orbitopathy), as well as medicaments, dosing regimens, pharmaceutical formulations, dosage forms, and kits for use in the disclosed uses and methods.

Description

METHODS OF TREATING THYROID EYE DISEASE AND GRAVES’ ORBITOPAHY USING INTERLEUKIN-17 (IL-17) ANTAGONISTS

TECHNICAL FIELD

The present disclosure relates to methods for treating Thyroid Eye Disease (TED) and Graves’ Orbitopathy (GO) using IL-17 antagonists, e.g., IL-17 antibodies, e.g., secukinumab.

BACKGROUND OF THE DISCLOSURE

Thyroid Eye Disease (TED) includes Graves’ Orbitopathy (GO) (also known as Graves’ Ophthalmopathy), ophthalmopathy associated with Hashimoto’s thyroiditis, and other thyroid- associated ophthalmopathy. Kan et al. (2014) Int. J. Ophthalmol (4):644-47; Kahaly et al. (2016) J Clin Endocrinol Metab 101(5): 1998-2004. GO is an autoimmune inflammatory disorder of the orbit and represents the most common extra-thyroidal manifestation of Graves' disease (GD) and the most common disorder of the orbit. GD is characterized by hyperthyroidism, caused by stimulating autoantibodies directed against the thyroid-stimulating-hormone (TSH) receptor. Active GO is a rare condition with an estimated incidence of 0.31-0.48 per 10,000 persons based on data from references Abraham-Nordling et al. (2011) Eur J Endocrinol.165(6):899-905 and Laurberg et al (2012) J Clin Endocrinol Metab. 97(7): 2325-2332.

GO is characterized by exophthalmos, eyelid retraction, periorbital edema, swelling/redness of eyelids and conjunctiva, impaired ocular motility with consecutive strabismus/ diplopia and impaired visual function. In very severe cases, GO can cause serious ophthalmologic complications such as corneal breakdown or dysthyroid optic neuropathy (DON), which can be sight-threatening. Onset of GO commonly occurs with or after the onset of GD (Wiersinga (2017) Lancet Diabetes Endocrinol; 5(2): 134-142). GO may severely affect the patients' quality of life (QoL), from the mostly immediately visible and stigmatizing impact of exophthalmos and swelling/redness on patients' facial expression, to highly bothersome symptoms such as retrobulbar pain, pain with eye movement, impaired ocular motility, dry eye, foreign body sensation, impaired visual function or diplopia (Kahaly et al (2005) Clin. Endocrinol. (Oxf) 63(4):395-402; Ponto et al. (2013) J. Clin. Endocrinol. Metab. 98(1): 145-152).

Various immune cells such as T cells, B cells, monocytes, natural killer (NK) cells or macrophages are recruited to the orbital space during the active phase of GO. B and T cells are then stimulated to recognize orbital fibroblasts, which are the main target cell of the autoimmune attack. Activated infiltrating T cells secrete several cytokines/chemokines, further reinforcing inflammatory processes and stimulating activation of autoreactive B cells. The released cytokines promote proliferation and differentiation of orbital fibroblasts into fibrocytes, which produce and deposit large amounts of extracellular matrix components such as glycosaminoglycans in the orbital space, causing massive swelling of orbital tissues, especially of the extraocular muscles, and fibrosis of the orbital space (Wiersinga et al (2017), Huang et al (2019) Eye; 33(2): 176-182).

Fibroblast proliferation and extracellular matrix deposition leading to swelling of retrobulbar tissue, jointly result in a pressure increase in the retrobulbar space. This in turn causes proptosis of the globe (exophthalmos) as a natural way of decompression. Furthermore, the affected extraocular muscles become fibrotic, which leads to restricted eye motility, strabismus and pain with eye movement. The increased retrobulbar pressure furthermore results in impairment of venous drainage leading to chemosis, periorbital and lid edema. In very severe cases, the pressure increase can result in compression of the optic nerve leading to compressive optic neuropathy (Gorman (1998) Thyroid; 8(6):539-543).

The 2016 EUGOGO guidelines for the management of GO recommend intravenous (i.v.) high-dose methylprednisolone pulse therapy be considered as first-line treatment. Given the associated risks, the guidelines also recommend that this treatment be administered in experienced centers that can carefully monitor for toxicity and safely manage serious adverse events, including monitoring of liver enzymes, glucose levels and blood pressure (Bartalena et al (2016) Eur. Thyroid J. 5(l):9-26). In addition, psychiatric side effects such as insomnia or dysphoria can occur, often at the beginning of high-dose corticosteroid therapy, for which patients should also be monitored. Proton pump inhibitors are recommended to prevent gastric ulcer, and contraindications such as inadequately controlled diabetes, significant hepatic dysfunction or relevant cardiovascular or psychiatric morbidity have to be taken into consideration. Corticosteroids are usually not considered effective for proptosis. Approximately 25-30% of patients with GO do not respond adequately or relapse after completion of corticosteroid treatment. Furthermore, corticosteroids may only marginally improve long-term outcome of GO (Ing E (2019) Thyroid associated orbitopathy. Medscape; 1-23. Available at //emedicine. medscape.com/article/1218444). Due to these concerns, high dose i.v. methylprednisolone is not uniformly given to all patients with moderate-to- severe GO, and may be reserved for patients with more severe, sight-threatening disease/DON (Ing (2019)). Some patients may receive oral corticosteroids, but they are less effective and may be associated with even greater toxicity (Bartalena et al. (2016); Stiebel-Kalish et al. (2009) J. Clin. Endocrinol. Metab. 94(8):2708-2716; Marcocci et al. (2012) Eur. J. Endocrinol. 166(2):247-253).

For patients who do not respond to i.v. glucocorticoids or relapse, the EUGOGO guidelines recommend a second course of i.v. methylprednisolone, orbital radiotherapy in combination with glucocorticoids, cyclosporine in combination with glucocorticoids or rituximab treatment. The very limited evidence for all these second-line options as well as the potential side effects and the off-label status should be taken into consideration for benefit-risk-assessment when selecting a treatment. Therefore, guidelines recommend shared decision-making together with the patient.

In January 2020, the US FDA approved the IGF-IR inhibitor teprotumumab as the first drug for the treatment of adults with TED (Douglas et al. (2020) N. Engl. J. Med. 382:341-52). Teprotumumab is provided to TED patients as an i.v. infusion, and, as reported in Douglas et al. (2020), infusion reactions were noted in patients in the teprotumumab study group. Infusion reactions (in about 4% of patients treated with teprotumumb) is also reflected in the TEPEZZA (teprotumumab) product label (Warnings and Precautions Section). Thus, there is a high unmet need for additional therapies for TED and GO that have favorable benefit-risk profiles and that demonstrate consistent efficacy for the orbital and ophthalmological changes thereof.

SUMMARY OF THE DISCLOSURE

Secukinumab (see, e.g., W02006/013107 and W02007/117749) is a fully-human monoclonal antibody that selectively neutralizes the human IL-17A cytokine. It has a very high affinity for IL-17, i.e., a KD of about 100-200 pM and an ICso for in vitro neutralization of the biological activity of about 0.67 nM human IL-17A of about 0.4 nM. Thus, secukinumab inhibits antigen at a molar ratio of about 1:1. This high binding affinity makes secukinumab particularly suitable for therapeutic applications. Furthermore, secukinumab has a long half-life, i.e., about 4 weeks, which allows for prolonged periods between administration, an exceptional property when treating chronic life-long disorders, such as TED. Several studies confirm that there are increased levels of IL-17A detected in serum as well as lacrimal fluid of patients with GO, and IL-17/ IL-17A serum levels correlate with the clinical activity of the disease (Fang et al (2016a) J Clin Endocrinol Metab 101(8):2955-2965; Kim et al (2012) Graefes Arch Clin Exp Ophthalmol 250(10): 1521-1526; Wei et al (2014) Endocr J 61(11): 1087-1092; Huang et al (2012) Graefes Arch Clin Exp Ophthalmol 250(4):619- 625; Uj helyi et al (2012) Thyroid 22(4):407-414). In addition, Thl7 cells producing IL-17A were shown to be significantly increased in orbital tissue of patients with active GO, compared to healthy controls (Fang et al (2016b) Invest Ophthalmol Vis Sci.; 57:6123-6133; Fang et al (2017) J Clin Endocrinol Metab; 102(11):4273-4283; Hai et al (2019) J Endocrinol Invest. Doi: 10.1007/s40618-019-01116-4 [Epub ahead of print]). Thus, there is a potential pathogenic role of IL-17 A-producing T cells in the inflammatory response and fibrosis of GO. Nevertheless, these studies do not determine whether IL-17A is a disease driver of TED, or whether IL-17A is merely a disease passenger, and these studies are silent regarding whether secukinumab can be used to treat TED, as well as whether particular doses and regimens of secukinumab can produce desired outcomes, while maintaining a favorable risk/benefit profile.

We have now devised novel treatments for TED patients (preferably GO patients) with IL- 17 antagonists, e.g., IL-17 antibodies or antigen-binding fragments thereof, e.g., secukinumab, that are safe, effective and provide sustained responses for patients.

In some embodiments of the disclosed uses, methods and kits, the IL-17 antagonist is an IL-17 antibody or antigen-binding fragment thereof. In some embodiments of the disclosed uses, methods and kits, the IL-17 antibody or antigen-binding fragment thereof is selected from the group consisting of: a) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of human IL-17 comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29; b) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of human IL-17 comprising Tyr43, Tyr44, Arg46, Ala79, Asp80; c) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of an IL-17 homodimer having two mature human IL-17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vail 24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain; d) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of an IL-17 homodimer having two mature human IL-17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain, wherein the IL-17 antibody or antigen-binding fragment thereof has a KD of about 100-200 pM, and wherein the IL- 17 antibody or antigen-binding fragment thereof has an in vivo half-life of about 23 to about 35 days; e) an IL-17 antibody that binds to an epitope of an IL-17 homodimer having two mature IL- 17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain, wherein the IL-17 antibody has a KD of about 100-200 pM as measured by a biosensor system (e.g., BIACORE), and wherein the IL-17 antibody has an in vivo half-life of about 23 to about 30 days; and f) an IL-17 antibody or antigen-binding fragment thereof comprising: i) an immunoglobulin heavy chain variable domain (VH) comprising the amino acid sequence set forth as SEQ ID NO:8; ii) an immunoglobulin light chain variable domain (VL) comprising the amino acid sequence set forth as SEQ ID NO: 10; iii) an immunoglobulin VH domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin VL domain comprising the amino acid sequence set forth as SEQ ID NO: 10; iv) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3; v) an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; vi) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13; vii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO:l, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; viii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; ix) an immunoglobulin light chain comprising the amino acid sequence set forth as SEQ ID NO: 14; x) an immunoglobulin heavy chain comprising the amino acid sequence set forth as SEQ ID NO: 15; or xi) an immunoglobulin light chain comprising the amino acid sequence set forth as SEQ ID NO: 14 and an immunoglobulin heavy chain comprising the amino acid sequence set forth as SEQ ID NO: 15.

Disclosed herein are methods of treating TED (preferably GO), comprising subcutaneously (SC) administering to a patient in need thereof a dose of about 150 mg - about 300 mg of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, weekly during weeks 0, 1, 2, 3, and 4, and every four weeks thereafter, beginning during week 8, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

Disclosed herein are methods of treating of treating TED (preferably GO), comprising subcutaneously (SC) administering to a patient in need thereof a dose of about 150 mg - about 300 mg of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, weekly during weeks 0, 1, 2, 3, and 4, and every two weeks thereafter, beginning during week 6, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

Disclosed herein are methods of treating of treating TED (preferably GO), comprising intravenously (IV) administering to a patient in need thereof a dose of about 4 mg/kg - about 9 mg/kg (preferably about 6 mg/kg) of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, once during week 0, and thereafter administering an IV dose of about 2 mg/kg - about 4 mg/kg (preferably about 3 mg/kg) of the IL-17 antibody, or an antigen-binding fragment thereof every four weeks, beginning during week 4, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

In preferred embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is subcutaneously (SC) administered at a dose of 150 mg or 300 mg. In other preferred embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is intravenously (IV) administered at a dose of 8 mg/kg, 6 mg/kg, 7 mg/kg, 4 mg/kg, 3.5 mg/kg or 3 mg/kg (or combinations thereof).

In other preferred embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is intravenously (IV) administered at an induction dose of 8 mg/kg and thereafter as a maintenance dose of 4 mg/kg.

In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered using an induction regimen, followed by a maintenance regimen. In some embodiments, the induction regimen comprises weekly administration and the maintenance regimen comprises administration every two weeks, every four weeks (monthly), or every eight weeks (every other month). In some embodiments, the induction regimen comprises administration every two weeks and the maintenance regimen comprises administration every two weeks, preferably every four weeks (monthly), or every eight weeks (every other month). In some embodiments, the induction regimen comprises one administration and the maintenance regimen comprises administration every four weeks (monthly). In some embodiments, the induction regimen comprises two administrations and the maintenance regimen comprises administration every four weeks (monthly). In some embodiments, the induction regimen comprises every four weeks (monthly) administration and the maintenance regimen comprises administration every eight weeks (every other month).

In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered SC at a dose of about 300 mg during the induction and maintenance regimen. In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered SC at a dose of about 150 mg during the induction and maintenance regimen.

In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered SC at a dose of about 300 mg during the induction regimen. In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen binding fragment thereof, such as secukinumab) is administered SC at a dose of about 300 mg during the induction regimen and at a dose of about 150 mg during the maintenance regimen.

In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered IV at a dose of about 8 mg/kg during the induction regimen. In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen binding fragment thereof, such as secukinumab) is administered IV at a dose of about 6 mg/kg during the induction regimen. In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered IV at a dose of about 4 mg/kg during the induction regimen. In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered IV at a dose of about 4 mg/kg during the maintenance regimen. In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered IV at a dose of about 3 mg/kg during the maintenance regimen.

In some embodiments of the disclosed uses, methods and kits, the IL-17 antibody or antigen-binding fragment thereof is a human or humanized antibody. In some embodiments of the disclosed uses, methods and kits, the IL-17 antibody or antigen-binding fragment thereof is secukinumab. Disclosed herein are methods of treating an adult patient with Thyroid Eye Disease [TED], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every four weeks thereafter. Disclosed herein are methods of treating an adult patient with Thyroid Eye Disease [TED], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every two weeks thereafter. In preferred embodiments, the patient has moderate-to- severe active TED. In preferred embodiments, the patient has Graves’ Disease or Hashimoto’s Thyroiditis.

Disclosed herein are methods of treating an adult patient with Graves’ Orbitopathy [GO], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every four weeks thereafter. Disclosed herein are methods of treating an adult patient with Graves’ Orbitopathy [GO], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every two weeks thereafter. In preferred embodiments, the patient has moderate-to- severe active GO.

BRIEF DESCRIPTON OF THE FIGURES

Figure 1 shows the study design of the secukinumab-based GO human clinical trial. Patients enrolled in this trial will have active, moderate-to-severe GO. All patients receive weekly SC injections of blinded study drug (either 300 mg secukinumab or placebo) at weeks 0, 1, 2, 3 and 4, and then every 4 weeks thereafter. The primary endpoint is taken at week 16, with follow up to week 40.

DETAILED DESCRIPTION OF THE DISCLOSURE

As used herein, IL-17 refers to interleukin- 17A (IL-17A).

The term “comprising” encompasses “including” as well as “consisting,” e.g., a composition “comprising” X may consist exclusively of X or may include something additional, e.g., X + Y.

Unless otherwise specifically stated or clear from context, as used herein, the term “about” in relation to a numerical value is understood as being within the normal tolerance in the art, e.g., within two standard deviations of the mean. Thus, “about” can be within +/-10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.1%, 0.05%, or 0.01% of the stated value, preferably +/-10% of the stated value. When used in front of a numerical range or list of numbers, the term “about” applies to each number in the series, e.g., the phrase “about 1-5” should be interpreted as “about 1 - about 5”, or, e.g., the phrase “about 1, 2, 3, 4” should be interpreted as “about 1, about 2, about 3, about 4, etc.”

The word “substantially” does not exclude “completely,” e.g., a composition which is “substantially free” from Y may be completely free from Y. Where necessary, the word “substantially” may be omitted from the definition of the disclosure.

The term "antibody" as referred to herein includes naturally-occurring and whole antibodies. A naturally-occurring "antibody" is a glycoprotein comprising at least two heavy (H) chains and two light (L) chains inter-connected by disulfide bonds. Each heavy chain is comprised of a heavy chain variable region (abbreviated herein as VH) and a heavy chain constant region. The heavy chain constant region is comprised of three domains, CHI, CH2 and CH3. Each light chain is comprised of a light chain variable region (abbreviated herein as VL) and a light chain constant region. The light chain constant region is comprised of one domain, CL. The VH and VL regions can be further subdivided into regions of hypervariability, termed hypervariable regions or complementarity determining regions (CDR), interspersed with regions that are more conserved, termed framework regions (FR). Each VH and VL is composed of three CDRs and four FRs arranged from amino-terminus to carboxy -terminus in the following order: FR1, CDR1, FR2, CDR2, FR3, CDR3, FR4. The variable regions of the heavy and light chains contain a binding domain that interacts with an antigen. The constant regions of the antibodies may mediate the binding of the immunoglobulin to host tissues or factors, including various cells of the immune system (e.g., effector cells) and the first component (Clq) of the classical complement system. Exemplary antibodies include secukinumab (Table 1), antibody XAB4 (US Patent No. 9,193,788), bimekizumab (U.S. Patent No. 8,303,953), and ixekizumab (U.S. Patent No. 7,838,638), the disclosures of which are incorporated by reference herein in their entirety.

The term "antigen-binding fragment" of an antibody, as used herein, refers to fragments of an antibody that retain the ability to specifically bind to an antigen (e.g., IL-17). It has been shown that the antigen-binding function of an antibody can be performed by fragments of a full-length antibody. Examples of binding fragments encompassed within the term "antigen-binding portion" of an antibody include a Fab fragment, a monovalent fragment consisting of the VL, VH, CL and CHI domains; a F(ab)2 fragment, a bivalent fragment comprising two Fab fragments linked by a disulfide bridge at the hinge region; a Fd fragment consisting of the VH and CHI domains; a Fv fragment consisting of the VL and VH domains of a single arm of an antibody; a dAb fragment (Ward et al., 1989 Nature 341:544-546), which consists of a VH domain; and an isolated CDR. Exemplary antigen-binding fragments include the CDRs of secukinumab as set forth in SEQ ID NOs: 1-6 and 11-13 (Table 1), preferably the heavy chain CDR3. Furthermore, although the two domains of the Fv fragment, VL and VH, are coded for by separate genes, they can be joined, using recombinant methods, by a synthetic linker that enables them to be made as a single protein chain in which the VL and VH regions pair to form monovalent molecules (known as single chain Fv (scFv); see, e.g., Bird et al., 1988 Science 242:423-426; and Huston et al., 1988 Proc. Natl. Acad. Sci. 85:5879-5883). Such single chain antibodies are also intended to be encompassed within the term "antibody”. Single chain antibodies and antigen-binding portions are obtained using conventional techniques known to those of skill in the art.

An "isolated antibody", as used herein, refers to an antibody that is substantially free of other antibodies having different antigenic specificities (e.g., an isolated antibody that specifically binds IL-17 is substantially free of antibodies that specifically bind antigens other than IL-17). The term "monoclonal antibody" or "monoclonal antibody composition" as used herein refer to a preparation of antibody molecules of single molecular composition. The term "human antibody", as used herein, is intended to include antibodies having variable regions in which both the framework and CDR regions are derived from sequences of human origin. A “human antibody” need not be produced by a human, human tissue or human cell. The human antibodies of the disclosure may include amino acid residues not encoded by human sequences (e.g., mutations introduced by random or site-specific mutagenesis in vitro , by N-nucleotide addition at junctions in vivo during recombination of antibody genes, or by somatic mutation in vivo). In some embodiments of the disclosed processes and compositions, the IL-17 antibody is a human antibody, an isolated antibody, and/or a monoclonal antibody.

The term "IL-17" refers to IL-17A, formerly known as CTLA8, and includes wild-type IL- 17A from various species (e.g., human, mouse, and monkey), polymorphic variants of IL-17A, and functional equivalents of IL-17 A. Functional equivalents of IL-17A according to the present disclosure preferably have at least about 65%, 75%, 85%, 95%, 96%, 97%, 98%, or even 99% overall sequence identity with a wild-type IL-17A (e.g., human IL-17A), and substantially retain the ability to induce IL-6 production by human dermal fibroblasts.

The term "KD" is intended to refer to the dissociation rate of a particular antibody-antigen interaction. The term "KD", as used herein, is intended to refer to the dissociation constant, which is obtained from the ratio of Kd to K_a (i.e., Kd/K_a) and is expressed as a molar concentration (M). KD values for antibodies can be determined using methods established in the art. A preferred method for determining the KD of an antibody is by using surface plasmon resonance, or using a biosensor system, e.g., a Biacore® system. In some embodiments, the IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab, binds human IL-17 with a KD of about 100-250 pM.

The term "affinity" refers to the strength of interaction between antibody and antigen at single antigenic sites. Within each antigenic site, the variable region of the antibody “arm” interacts through weak non-covalent forces with antigen at numerous sites; the more interactions, the stronger the affinity. Standard assays to evaluate the binding affinity of the antibodies toward IL- 17 of various species are known in the art, including for example, ELIS As, western blots and RIAs. The binding kinetics (e.g., binding affinity) of the antibodies also can be assessed by assays known in the art, e.g., using a Biacore® analysis.

An antibody that "inhibits" one or more of these IL-17 functional properties (e.g., biochemical, immunochemical, cellular, physiological or other biological activities, or the like) as determined according to methodologies known to the art and described herein, will be understood to relate to a statistically significant decrease in the particular activity relative to that seen in the absence of the antibody (or when a control antibody of irrelevant specificity is present). An antibody that inhibits IL-17 activity affects a statistically significant decrease, e.g., by at least about 10% of the measured parameter, by at least 50%, 80% or 90%, and in certain embodiments of the disclosed methods and compositions, the IL-17 antibody used may inhibit greater than 95%, 98% or 99% of IL-17 functional activity.

“Inhibit IL-6” as used herein refers to the ability of an IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) to decrease IL-6 production from primary human dermal fibroblasts. The production of IL-6 in primary human (dermal) fibroblasts is dependent on IL-17 (Hwang et ah, (2004) Arthritis Res Ther; 6:R120-128). In short, human dermal fibroblasts are stimulated with recombinant IL-17 in the presence of various concentrations of an IL-17 binding molecule or human IL-17 receptor with Fc part. The chimeric anti-CD25 antibody Simulect^® (basiliximab) may be conveniently used as a negative control. Supernatant is taken after 16 h stimulation and assayed for IL-6 by ELISA. An IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab, typically has an ICso for inhibition of IL-6 production (in the presence 1 nM human IL-17) of about 50 nM or less (e.g., from about 0.01 to about 50 nM) when tested as above, i.e., said inhibitory activity being measured on IL-6 production induced by hu-IL-17 in human dermal fibroblasts. In some embodiments of the disclosed methods and compositions, IL-17 antibodies or antigen-binding fragments thereof, e.g., secukinumab, and functional derivatives thereof have an ICso for inhibition of IL-6 production as defined above of about 20 nM or less, more preferably of about 10 nM or less, more preferably of about 5 nM or less, more preferably of about 2 nM or less, more preferably of about 1 nM or less.

The term "derivative", unless otherwise indicated, is used to define amino acid sequence variants, and covalent modifications (e.g., pegylation, deamidation, hydroxylation, phosphorylation, methylation, etc.) of an IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab, according to the present disclosure, e.g., of a specified sequence (e.g., a variable domain). A “functional derivative” includes a molecule having a qualitative biological activity in common with the disclosed IL-17 antibodies. A functional derivative includes fragments and peptide analogs of an IL-17 antibody as disclosed herein. Fragments comprise regions within the sequence of a polypeptide according to the present disclosure, e.g., of a specified sequence. Functional derivatives of the IL-17 antibodies disclosed herein (e.g., functional derivatives of secukinumab) preferably comprise VH and/or VL domains that have at least about 65%, 75%, 85%, 95%, 96%, 97%, 98%, or even 99% overall sequence identity with the VH and/or VL sequences of the IL-17 antibodies and antigen-binding fragments thereof disclosed herein (e.g., the VH and/or VL sequences of Table 1), and substantially retain the ability to bind human IL-17 or, e.g., inhibit IL-6 production of IL-17 induced human dermal fibroblasts.

The phrase “substantially identical” means that the relevant amino acid or nucleotide sequence (e.g., VH or VL domain) will be identical to or have insubstantial differences (e.g., through conserved amino acid substitutions) in comparison to a particular reference sequence. Insubstantial differences include minor amino acid changes, such as 1 or 2 substitutions in a 5 amino acid sequence of a specified region (e.g., VH or VL domain). In the case of antibodies, the second antibody has the same specificity and has at least 50% of the affinity of the same. Sequences substantially identical (e.g., at least about 85% sequence identity) to the sequences disclosed herein are also part of this application. In some embodiments, the sequence identity of a derivative IL- 17 antibody (e.g., a derivative of secukinumab, e.g., a secukinumab biosimilar antibody) can be about 90% or greater, e.g., 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or higher relative to the disclosed sequences.

’’Identity” with respect to a native polypeptide and its functional derivative is defined herein as the percentage of amino acid residues in the candidate sequence that are identical with the residues of a corresponding native polypeptide, after aligning the sequences and introducing gaps, if necessary, to achieve the maximum percent identity, and not considering any conservative substitutions as part of the sequence identity. Neither N- or C-terminal extensions nor insertions shall be construed as reducing identity. Methods and computer programs for the alignment are known. The percent identity can be determined by standard alignment algorithms, for example, the Basic Local Alignment Search Tool (BLAST) described by Altshul et al. ((1990) J. Mol. Biol., 215: 403 410); the algorithm of Needleman et al. ((1970) J. Mol. Biol., 48: 444 453); or the algorithm of Meyers et al. ((1988) Comput. Appl. Biosci., 4: 11 17). A set of parameters may be the Blosum 62 scoring matrix with a gap penalty of 12, a gap extend penalty of 4, and a frameshift gap penalty of 5. The percent identity between two amino acid or nucleotide sequences can also be determined using the algorithm of E. Meyers and W. Miller ((1989) CABIOS, 4:11-17) which has been incorporated into the ALIGN program (version 2.0), using a PAM120 weight residue table, a gap length penalty of 12 and a gap penalty of 4.

"Amino acid(s)" refer to all naturally occurring L-a-amino acids, e.g., and include D- amino acids. The phrase "amino acid sequence variant" refers to molecules with some differences in their amino acid sequences as compared to the sequences according to the present disclosure. Amino acid sequence variants of an antibody according to the present disclosure, e.g., of a specified sequence, still have the ability to bind the human IL-17 or, e.g., inhibit IL-6 production of IL-17 induced human dermal fibroblasts. Amino acid sequence variants include substitutional variants (those that have at least one amino acid residue removed and a different amino acid inserted in its place at the same position in a polypeptide according to the present disclosure), insertional variants (those with one or more amino acids inserted immediately adjacent to an amino acid at a particular position in a polypeptide according to the present disclosure) and deletional variants (those with one or more amino acids removed in a polypeptide according to the present disclosure).

The term “pharmaceutically acceptable” means a nontoxic material that does not interfere with the effectiveness of the biological activity of the active ingredient(s).

The term “administering” in relation to a compound, e.g., an IL-17 binding molecule or another agent, is used to refer to delivery of that compound to a patient by any route.

As used herein, the phrase “affected location” refers to any place on a patient’s body showing signs of TED.

As used herein, the phrase “active patch” refers to an affected location showing signs of ongoing immune dysregulation, inflammation, swelling, pain, itching, etc.

As used herein, a “therapeutically effective amount” refers to an amount of an IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 antibody or antigen binding fragment thereof) that is effective, upon single or multiple dose administration to a patient (such as a human) for treating, preventing, preventing the onset of, curing, delaying, reducing the severity of, ameliorating at least one symptom of a disorder or recurring disorder, or prolonging the survival of the patient beyond that expected in the absence of such treatment. When applied to an individual active ingredient (e.g., an IL-17 antagonist, e.g., secukinumab) administered alone, the term refers to that ingredient alone. When applied to a combination, the term refers to combined amounts of the active ingredients that result in the therapeutic effect, whether administered in combination, serially or simultaneously.

The term "treatment" or “treat” is herein defined as the application or administration of an IL-17 antibody according to the disclosure, for example, secukinumab or ixekizumab, or a pharmaceutical composition comprising said anti-IL-17 antibody, to a subject or to an isolated tissue or cell line from a subject, where the subject has a particular disease (e.g., TED, e.g., GO), a symptom associated with the disease (e.g., TED, e.g., GO ), or a predisposition towards development of the disease (e.g., TED, e.g., GO ), where the purpose is to cure (if applicable), delay the onset of, reduce the severity of, alleviate, ameliorate one or more symptoms of the disease, improve the disease, reduce or improve any associated symptoms of the disease or the predisposition toward the development of the disease. The term “treatment” or “treat” includes treating a patient suspected to have the disease as well as patients who are ill or who have been diagnosed as suffering from the disease or medical condition, and includes suppression of clinical relapse.

As used herein, the phrase “population of patients” is used to mean a group of patients. In some embodiments of the disclosed methods, the IL-17 antagonist (e.g., IL-17 antibody, such as secukinumab) is used to treat a population of TED, e.g., GO, patients.

As used herein, “selecting” and “selected” in reference to a patient is used to mean that a particular patient is specifically chosen from a larger group of patients on the basis of (due to) the particular patient having a predetermined criteria. Similarly, “selectively treating” refers to providing treatment to a patient having a particular disease, where that patient is specifically chosen from a larger group of patients on the basis of the particular patient having a predetermined criterion. Similarly, “selectively administering” refers to administering a drug to a patient that is specifically chosen from a larger group of patients on the basis of (due to) the particular patient having a predetermined criterion. By selecting, selectively treating and selectively administering, it is meant that a patient is delivered a personalized therapy based on the patient’s personal history (e.g., prior therapeutic interventions, e.g., prior treatment with biologies), biology (e.g., particular genetic markers), and/or manifestation (e.g., not fulfilling particular diagnostic criteria), rather than being delivered a standard treatment regimen based solely on the patient’s membership in a larger group. Selecting, in reference to a method of treatment as used herein, does not refer to fortuitous treatment of a patient having a particular criterion, but rather refers to the deliberate choice to administer treatment to a patient based on the patient having a particular criterion. Thus, selective treatment/administration differs from standard treatment/admini strati on, which delivers a particular drug to all patients having a particular disease, regardless of their personal history, manifestations of disease, and/or biology. In some embodiments, the patient is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) based on having TED, e.g., GO. In some embodiments, the patient is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) based on having active TED, e.g., active GO. In some embodiments, the patient is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) based on having moderate to severe TED, e.g., moderate to severe GO. In some embodiments, the patient is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen- binding fragment thereof, e.g., secukinumab) based on not having previously had prior corticosteroid therapy for TED, e.g., GO. In some embodiments, the patient is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) based on being refractory to corticosteroid therapy for TED, e.g., GO. In some embodiments, the patient is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) based on having previously had an inadequate response to corticosteroid therapy for TED, e.g., GO. In some embodiments, the patient (e.g., TED patient, GO patient) is selected for treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) based having TED, e.g., GO, that is inadequately controlled with corticosteroid therapy or the patient is one for whom corticosteroid therapy is not advisable. Patients for whom “corticosteroid therapy is not advisable” are those, e.g., having allergies to corticosteroid therapy, weakened immune systems, or other co-morbidities and/or co-medications that preclude safe and/or effective treatment with a corticosteroid.

IL-17 Antagonists

The various disclosed processes, kits, uses and methods utilize an IL-17 antagonist, e.g., IL-17 binding molecule (e.g., soluble IL-17 receptor, IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof). In some embodiments, the IL-17 antagonist is an IL-17 binding molecule, preferably an IL-17 antibody or antigen-binding fragment thereof.

In one embodiment, the IL-17 antibody or antigen-binding fragment thereof comprises at least one immunoglobulin heavy chain variable domain (VH) comprising hypervariable regions CDR1, CDR2 and CDR3, said CDR1 having the amino acid sequence SEQ ID NO:l, said CDR2 having the amino acid sequence SEQ ID NO:2, and said CDR3 having the amino acid sequence SEQ ID NO:3. In one embodiment, the IL-17 antibody or antigen-binding fragment thereof comprises at least one immunoglobulin light chain variable domain (VL ) comprising hypervariable regions CDRL, CDR2’ and CDR3’, said CDRL having the amino acid sequence SEQ ID NO:4, said CDR2’ having the amino acid sequence SEQ ID NO:5 and said CDR3’ having the amino acid sequence SEQ ID NO:6. In one embodiment, the IL-17 antibody or antigen-binding fragment thereof comprises at least one immunoglobulin heavy chain variable domain (VH) comprising hypervariable regions CDRl-x, CDR2-X and CDR3-X, said CDRl-x having the amino acid sequence SEQ ID NO: 11, said CDR2-x having the amino acid sequence SEQ ID NO: 12, and said CDR3-X having the amino acid sequence SEQ ID NO: 13.

In one embodiment, the IL-17 antibody or antigen-binding fragment thereof comprises at least one immunoglobulin VH domain and at least one immunoglobulin VL domain, wherein: a) the immunoglobulin VH domain comprises (e.g., in sequence): i) hypervariable regions CDR1, CDR2 and CDR3, said CDR1 having the amino acid sequence SEQ ID NO:l, said CDR2 having the amino acid sequence SEQ ID NO:2, and said CDR3 having the amino acid sequence SEQ ID NO:3; or ii) hypervariable regions CDRl-x, CDR2-X and CDR3-X, said CDRl-x having the amino acid sequence SEQ ID NO: 11, said CDR2-x having the amino acid sequence SEQ ID NO: 12, and said CDR3-X having the amino acid sequence SEQ ID NO: 13; and b) the immunoglobulin VL domain comprises (e.g., in sequence) hypervariable regions CDRE, CDR2’ and CDR3’, said CDRE having the amino acid sequence SEQ ID NO:4, said CDR2’ having the amino acid sequence SEQ ID NO:5, and said CDR3’ having the amino acid sequence SEQ ID NO:6.

In one embodiment, the IL-17 antibody or antigen-binding fragment thereof comprises: a) an immunoglobulin heavy chain variable domain (VH) comprising the amino acid sequence set forth as SEQ ID NO:8; b) an immunoglobulin light chain variable domain (VL) comprising the amino acid sequence set forth as SEQ ID NO: 10; c) an immunoglobulin VH domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin VL domain comprising the amino acid sequence set forth as SEQ ID NO: 10; d) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO:l, SEQ ID NO:2, and SEQ ID NO:3; e) an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; f) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13; g) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO:l, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; or h) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

For ease of reference the amino acid sequences of the hypervariable regions of the secukinumab monoclonal antibody, based on the Kabat definition and as determined by the X-ray analysis and using the approach of Chothia and coworkers, is provided in Table 1, below.

Table 1: Amino acid sequences of the hypervariable regions of secukinumab.

Secukinumab CDRs according to IMGT are as follows: light chain CDR1 (QSVSSSY; SEQ ID NO:16), CDR 2 (GAS; SEQ ID NO:17), CDR3 (QQYGSSPCT; SEQ ID NO:18); and heavy chain CDR1 (GFTFSNYW; SEQ ID NO: 19), CDR2 (INQDGSEK; SEQ ID NO:20), (VRDYYDILTDYYfflYWYFDL; SEQ ID NO:21).

In preferred embodiments, constant region domains also comprise suitable human constant region domains, for instance as described in "Sequences of Proteins of Immunological Interest", Kabat E.A. et al, US Department of Health and Human Services, Public Health Service, National Institute of Health. The DNA encoding the VL of secukinumab is set forth in SEQ ID NO:9. The DNA encoding the VH of secukinumab is set forth in SEQ ID NO:7.

In some embodiments, the IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) comprises the three CDRs of SEQ ID NO: 10. In other embodiments, the IL-17 antibody or antigen-binding fragment thereof comprises the three CDRs of SEQ ID NO:8. In other embodiments, the IL-17 antibody or antigen-binding fragment thereof comprises the three CDRs of SEQ ID NO: 10 and the three CDRs of SEQ ID NO: 8. CDRs according to Kabat and Chothia of SEQ ID NO:8 and SEQ ID NO: 10 may be found in Table 1. CDRs according to IMGT are set forth as SEQ ID NOs: 16-18 (light chain CDR1, CDR2, CDR3, respectively) and SEQ ID NOs: 19- 21 (light chain CDR1, CDR2, CDR3, respectively). The free cysteine in the light chain (CysL97) may be seen, e.g., in SEQ ID NO:6.

In some embodiments, IL-17 antibody or antigen-binding fragment thereof comprises the light chain of SEQ ID NO: 14. In other embodiments, the IL-17 antibody or antigen-binding fragment thereof comprises the heavy chain of SEQ ID NO: 15. In other embodiments, the IL-17 antibody or antigen-binding fragment thereof comprises the light chain of SEQ ID NO: 14 and the heavy domain of SEQ ID NO: 15. In some embodiments, the IL-17 antibody or antigen-binding fragment thereof comprises the three CDRs of SEQ ID NO: 14. In other embodiments, IL-17 antibody or antigen-binding fragment thereof comprises the three CDRs of SEQ ID NO: 15. In other embodiments, the IL-17 antibody or antigen-binding fragment thereof comprises the three CDRs of SEQ ID NO: 14 and the three CDRs of SEQ ID NO: 15. CDRs of SEQ ID NO: 14 and SEQ ID NO: 15 may be found in Table 1.

Hypervariable regions may be associated with any kind of framework regions, though preferably are of human origin. Suitable framework regions are described in Kabat E.A. et al, ibid. The preferred heavy chain framework is a human heavy chain framework, for instance that of the secukinumab antibody. It consists in sequence, e.g. of FR1 (amino acid 1 to 30 of SEQ ID NO:8), FR2 (amino acid 36 to 49 of SEQ ID NO: 8), FR3 (amino acid 67 to 98 of SEQ ID NO: 8) and FR4 (amino acid 117 to 127 of SEQ ID NO:8) regions. Taking into consideration the determined hypervariable regions of secukinumab by X-ray analysis, another preferred heavy chain framework consists in sequence of FRl-x (amino acid 1 to 25 of SEQ ID NO:8), FR2-x (amino acid 36 to 49 of SEQ ID NO: 8), FR3-x (amino acid 61 to 95 of SEQ ID NO: 8) and FR4 (amino acid 119 to 127 of SEQ ID NO:8) regions. In a similar manner, the light chain framework consists, in sequence, of FRE (amino acid 1 to 23 of SEQ ID NO: 10), FR2’ (amino acid 36 to 50 of SEQ ID NO: 10), FR3’ (amino acid 58 to 89 of SEQ ID NO: 10) and FR4’ (amino acid 99 to 109 of SEQ ID NO: 10) regions.

In one embodiment, the IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) is selected from a human IL-17 antibody that comprises at least: a) an immunoglobulin heavy chain or fragment thereof which comprises a variable domain comprising, in sequence, the hypervariable regions CDR1, CDR2 and CDR3 and the constant part or fragment thereof of a human heavy chain; said CDR1 having the amino acid sequence SEQ ID NO:l, said CDR2 having the amino acid sequence SEQ ID NO:2, and said CDR3 having the amino acid sequence SEQ ID NO:3; and b) an immunoglobulin light chain or fragment thereof which comprises a variable domain comprising, in sequence, the hypervariable regions CDRE, CDR2’, and CDR3’ and the constant part or fragment thereof of a human light chain, said CDRE having the amino acid sequence SEQ ID NO:4, said CDR2’ having the amino acid sequence SEQ ID NO:5, and said CDR3’ having the amino acid sequence SEQ ID NO:6.

In one embodiment, the IL-17 antibody or antigen-binding fragment thereof is selected from a single chain antibody or antigen-binding fragment thereof that comprises an antigen-binding site comprising: a) a first domain comprising, in sequence, the hypervariable regions CDR1, CDR2 and CDR3, said CDR1 having the amino acid sequence SEQ ID NO:l, said CDR2 having the amino acid sequence SEQ ID NO: 2, and said CDR3 having the amino acid sequence SEQ ID NO:3; and b) a second domain comprising, in sequence, the hypervariable regions CDRE, CDR2’ and CDR3’, said CDRE having the amino acid sequence SEQ ID NO:4, said CDR2’ having the amino acid sequence SEQ ID NO:5, and said CDR3’ having the amino acid sequence SEQ ID NO:6; and c) a peptide linker which is bound either to the N-terminal extremity of the first domain and to the C-terminal extremity of the second domain or to the C-terminal extremity of the first domain and to the N-terminal extremity of the second domain.

Alternatively, an IL-17 antibody or antigen-binding fragment thereof as used in the disclosed methods may comprise a derivative of the IL-17 antibodies set forth herein by sequence (e.g., pegylated variants, glycosylation variants, affinity-maturation variants, etc.). Alternatively, the VH or VL domain of an IL-17 antibody or antigen-binding fragment thereof used in the disclosed methods may have VH or VL domains that are substantially identical to the VH or VL domains set forth herein (e.g., those set forth in SEQ ID NO:8 and 10). A human IL-17 antibody disclosed herein may comprise a heavy chain that is substantially identical to that set forth as SEQ ID NO: 15 and/or a light chain that is substantially identical to that set forth as SEQ ID NO: 14. A human IL-17 antibody disclosed herein may comprise a heavy chain that comprises SEQ ID NO: 15 and a light chain that comprises SEQ ID NO: 14. A human IL-17 antibody disclosed herein may comprise: a) one heavy chain which comprises a variable domain having an amino acid sequence substantially identical to that shown in SEQ ID NO:8 and the constant part of a human heavy chain; and b) one light chain which comprises a variable domain having an amino acid sequence substantially identical to that shown in SEQ ID NO: 10 and the constant part of a human light chain.

Alternatively, an IL-17 antibody or antigen-binding fragment thereof used in the disclosed methods may be an amino acid sequence variant of the reference IL-17 antibodies set forth herein, as long as it contains CysL97. The disclosure also includes IL-17 antibodies or antigen-binding fragments thereof (e.g., secukinumab) in which one or more of the amino acid residues of the VH or VL domain of secukinumab (but not CysL97), typically only a few (e.g., 1-10), are changed; for instance by mutation, e.g., site directed mutagenesis of the corresponding DNA sequences. In all such cases of derivative and variants, the IL-17 antibody or antigen-binding fragment thereof is capable of inhibiting the activity of about 1 nM (= 30 ng/ml) human IL-17 at a concentration of about 50 nM or less, about 20 nM or less, about 10 nM or less, about 5 nM or less, about 2 nM or less, or more preferably of about 1 nM or less of said molecule by 50%, said inhibitory activity being measured on IL-6 production induced by hu-IL-17 in human dermal fibroblasts as described in Example 1 ofWO 2006/013107.

In some embodiments, the IL-17 antibodies or antigen-binding fragments thereof, e.g., secukinumab, bind to an epitope of mature human IL-17 comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29. In some embodiments, the IL-17 antibody, e.g., secukinumab, binds to an epitope of mature human IL-17 comprising Tyr43, Tyr44, Arg46, Ala79, Asp80. In some embodiments, the IL-17 antibody, e.g., secukinumab, binds to an epitope of an IL-17 homodimer having two mature human IL-17 chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain. The residue numbering scheme used to define these epitopes is based on residue one being the first amino acid of the mature protein (i.e., IL-17A lacking the 23 amino acid N-terminal signal peptide and beginning with glycine). The sequence for immature IL-17A is set forth in the Swiss-Prot entry Q16552. In some embodiments, the IL-17 antibody has a KD of about 100-200 pM (e.g., as determined by a Biacore® assay). In some embodiments, the IL-17 antibody has an ICso of about 0.4 nM for in vitro neutralization of the biological activity of about 0.67 nM human IL-17A. In some embodiments, the absolute bioavailability of subcutaneously (SC) administered IL-17 antibody has a range of about 60 % - about 80%, e.g., about 76%. In some embodiments, the IL-17 antibody, such as secukinumab, has an elimination half-life of about 4 weeks (e.g., about 23 to about 35 days, about 23 to about 30 days, e.g., about 30 days). In some embodiments, the IL-17 antibody (such as secukinumab) has a Tmax of about 7-8 days.

Particularly preferred IL-17 antibodies or antigen-binding fragments thereof used in the disclosed methods are human antibodies, especially secukinumab as described in Examples 1 and 2 of WO 2006/013107. Other preferred IL-17 antibodies for use in the disclosed methods, kits and regimens are those set forth in US Patent Nos: 8,057,794; 8,003,099; 8,110,191; and 7,838,638 and US Published Patent Application Nos: 20120034656 and 20110027290, which are incorporated by reference herein in their entirety.

Methods of Treatment and Uses of IL-17 Antagonists

The disclosed IL-17 antagonists, e.g., IL-17 binding molecules (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecules (e.g., IL-17 receptor antibody or antigen-binding fragment thereof), may be used in vitro , ex vivo , or incorporated into pharmaceutical compositions and administered in vivo to treat patients having TED (e.g., GO or ophthalmopathy associated with Hashimoto’s Thyroiditis, preferably GO)

(e.g., human patients).

As used herein, the phrases “Thyroid Eye Disease” and “TED,” include Graves’ Orbitopathy (GO) (also known as Graves’ Ophthalmopathy), ophthalmopathy associated with Hashimoto’s thyroiditis, and other thyroid-associated ophthalmopathy. The activity of TED (e.g., GO) disease can be evaluated using a validated scoring system called the clinical activity score (CAS), which quantitatively measures the degree of active inflammation of the orbit. It takes into account the following criteria and awards one point for the presence of each of seven symptoms/signs: Symptoms: (1) spontaneous retrobulbar pain, (2) pain on attempted upwards or downwards gaze; Signs: (3) redness of the eyelids, (4) redness of the conjunctiva, (5) swelling of the caruncle or plica, (6) swelling of the eyelids and (7) swelling of the conjunctiva. Scores of <3 suggest inactive GO while scores >3 suggest active GO (Mourits et al (1997) Clinical Endocrinology 47(1):9-14). In some embodiments, the TED (e.g., GO) patient to be treated using the disclosed methods, uses, kits, etc. has active TED (e.g., GO).

The severity of TED (e.g., GO) is typically graded into mild, moderate-to-severe or sight- threatening (i.e., ‘very severe’) based on the degree of lid retraction, soft tissue involvement, proptosis, diplopia, corneal exposure and optic nerve involvement (Bartalena et al (2016) Eur Thyroid J 5(l):9-26).

The most common form of GO is mild GO, encompassing approximately 65% of patients (Perros et al (2017) Orphanet J Rare Dis. 12:72). These are patients whose features of GO have only a minor impact on daily life characterized by one or more of the following: minor lid retraction (<2 mm), mild soft-tissue involvement, exophthalmos <3 mm above normal for race/gender, no or intermittent diplopia and corneal exposure responsive to lubricants. However, in patients with moderate-to-severe GO (approximately 29-33% of GO patients) the disease has a sufficient impact on daily life to justify immunosuppressive (if active) or surgical (if inactive) intervention. Patients usually present with two or more of the following criteria: lid retraction >2 mm, moderate or severe soft-tissue involvement, exophthalmos >3 mm above normal for race/gender, or inconstant or constant diplopia. The most severe form of GO, sight-threatening GO (approximately 2% of GO patients), includes any patient with Dysthyroid optic neuropathy and/ or corneal breakdown. Sight-threatening disease requires immediate ophthalmologic evaluation and urgent medical or surgical therapies. In some embodiments, the TED (e.g., GO) patient to be treated using the disclosed methods, uses, kits, etc. has moderate-to-severe TED (e.g., GO). In some embodiments, the TED (e.g., GO) patient to be treated using the disclosed methods, uses, kits, etc. has active moderate-to-severe TED (e.g., GO).

As used herein, “TED therapy” and “GO therapy” refer to TED (e.g., GO) treatments employing TED (e.g., GO) agents (e.g., small molecules, biological therapies, etc.) or employing a TED (e.g., GO) modality (e.g., radiotherapy, decompressive surgery), and combinations thereof. These include steroids (e.g., corticosteroids, e.g., methylprednisolone), rituximab, cyclosporine, methotrexate, radiotherapy (e.g., orbital radiation, iodine radiotherapy), selenium supplements, artificial tears, mycophenolate (mofetil, sodium), decompressive surgery, teprotumumab, diuretics, methimazole, prednisone, propylthiouracil, allograft, celecoxib, i.v. immunglobulins, P³² brachytherapy, pioglitazone, somatostatin analogs (e.g., lanreotide, octreotide), toclizumab, TNF alpha inhibitors (e.g., etanercept, infliximb, adalimumab).

In some embodiments, the TED (e.g., GO) patient to be treated using the disclosed methods, uses, kits, etc. has not previously been treated with a TED therapy (e.g., the patient has not previously been treated with a steroid, e.g., a corticosteroid, e.g., methylprednisolone). TED patients (e.g., GO patients) not previously treated with a steroid are sometimes referred to herein as “steroid naive” or “corticosteroid-naive” (as appropriate).

In some embodiments, the TED (e.g., GO) patient to be treated using the disclosed methods, uses, kits, etc. has been previously treated with a TED therapy (e.g., the patient has been previously treated with a steroid, e.g., a corticosteroid, e.g., methylprednisolone). TED patients (e.g., GO patients) previously treated with a steroid are sometimes referred to herein as “steroid experienced” or “corticosteroid-experienced” (as appropriate).

As used herein, the phrases “inadequately controlled”, “inadequate response”, “did not adequately respond” and the like refer to treatments that produce an insufficient response or treatment failure in a patient, e.g., following treatment with a given agent a patient still has one or more pathological symptoms of the disorder, e.g., in the case of TED (e.g., GO), symptoms include itching, patches of hair loss, pain, burning, lesions, etc. In some embodiments, prior to administering the IL-17 antagonist, the patient has had an inadequate response to a prior TED (e.g., GO) therapy. In some embodiments, the patient has had an inadequate response to prior treatment with a steroid (e.g., a corticosteroid).

A patient who has responded adequately to treatment with a prior TED (e.g., GO) therapy (e.g., a corticosteroid), but has discontinued due to a side effect is termed “intolerant”. In some embodiments, the patient having TED (e.g., GO) to be treated using the disclosed methods, uses, kits, etc. is intolerant to a prior TED therapy (e.g., a corticosteroid). In some embodiments, the patient is intolerant to corticosteroid therapy, e.g., high potency corticosteroids (according to the WHO definition). “Refractory” refers to a particular type of inadequate response, i.e., by “refractory” is meant that the patient has been treated with at least 4 weeks of TED (e.g., GO) therapy (e.g., a corticosteroid) without significant improvement. In some embodiments, the patient having TED (e.g., GO) who is treated according to the disclosed methods, uses, kits, etc. is refractory to treatment with a prior TED therapy. In some embodiments, the patient is refractory to corticosteroid therapy, e.g., high potency corticosteroids (according to the WHO definition).

As used herein, “induction” refers to the portion of a therapy that typically induces lowering or remission of disease burden. Thereafter, a patient may be treated with a “maintenance” regimen to maintain the patient in a disease-free (or relapse-free) state.

The effectiveness of TED (e.g., GO) treatment may be assessed using various known methods and tools that measure TED (e.g., GO) clinical activity, quality of life, etc. Such tests include, e.g., Clinical Activity Score (CAS), proptosis measurement, MRI imaging of the orbit, Graves’ Opththalmopathy Quality of Life questionnaire score (GO-QoL), diplopia measurement, measurement of TSH receptor autoantibodies. As used herein, the term “baseline” and the like (e.g., “baseline value”) refer to the value of a given variable prior to a patient being treated with the IL-17 antibody or antigen-binding fragment thereof.

In some embodiments, the patient is an adult human patient having TED (e.g., GO). In some embodiments, the patient is a pediatric human patient having TED (e.g., GO). The upper age limit used to define a pediatric patient varies among experts, and can include adolescents up to the age of 21 (see, e.g., Berhman RE, Kliegman R, Arvin AM, Nelson WE. Nelson Textbook of Pediatrics, 15th Ed. Philadelphia: W.B. Saunders Company; 1996; 2. Rudolph AM, et al. Rudolph’s Pediatrics, 21st Ed. New York: McGraw-Hill; 2002; and Avery MD, First LR. Pediatric Medicine, 2nd Ed. Baltimore: Williams & Wilkins; 1994). As used herein, the term “Pediatric” generally refers to a human who is sixteen years old or younger, which is the definition of a pediatric human used by the US FDA.

In some embodiments, the pediatric patient is administered a SC dose of the IL-17 antibody (e.g., secukinumab) weekly during week 0, 1, 2, 3, and 4, and then every two weeks or four weeks thereafter as a dose of about 150 mg - about 300 mg (e.g., 150 mg or 300 mg), regardless of the patient’s weight.

In some embodiments, the pediatric patient is administered a SC dose of the IL-17 antibody (e.g., secukinumab) weekly during week 0, 1, 2, 3, and 4, and then every two weeks or every four weeks thereafter as a dose of about 75 mg if the patient weighs < 25 kg or about 150 mg if the patient weighs > 25 kg. In some embodiments, the pediatric patient is administered a SC dose of the IL-17 antibody (e.g., secukinumab) weekly during week 0, 1, 2, 3, and 4, and then every two weeks or every four weeks thereafter as a dose of about 75 mg if the patient weighs < 50 kg or about 150 mg if the patient weighs > 50 kg.

In some embodiments, the pediatric patient is administered a SC dose of the IL-17 antibody (e.g., secukinumab) weekly during week 0, 1, 2, 3, and 4, and then every two weeks or every four weeks thereafter as a dose of about 150 mg if the patient weighs < 25 kg or 300 mg if the patient weighs > 25 kg. In some embodiments, the pediatric patient is administered a SC dose of the IL-17 antibody (e.g., secukinumab) weekly during week 0, 1, 2, 3, and 4, and then every two weeks or every four weeks thereafter as a dose of about 150 mg if the patient weighs < 50 kg or 300 mg if the patient weighs > 50 kg.

In some embodiments, the pediatric patient is administered an IV dose of the IL-17 antibody (e.g., secukinumab) of about 4 mg/kg - about 9 mg/kg (preferably about 6 mg/kg) once during week 0, and thereafter, as an IV dose of about 2 mg/kg - about 4 mg/kg (preferably about 3 mg/kg) every 4 weeks (monthly), beginning during week 4.

The IL-17 antagonists, e.g., IL-17 binding molecules (e.g., IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecules (e.g., IL-17 antibody or antigen-binding fragment thereof), may be used as a pharmaceutical composition when combined with a pharmaceutically acceptable carrier. Such a composition may contain, in addition to an IL-17 antagonist, carriers, various diluents, fillers, salts, buffers, stabilizers, solubilizers, and other materials known in the art. The characteristics of the carrier will depend on the route of administration. The pharmaceutical compositions for use in the disclosed methods may also contain additional therapeutic agents for treatment of the particular targeted disorder. For example, a pharmaceutical composition may also include anti-inflammatory agents. Such additional factors and/or agents may be included in the pharmaceutical composition to produce a synergistic effect with the IL-17 binding molecules, or to minimize side effects caused by the IL- 17 antagonists, e.g., IL-17 binding molecules (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecules (e.g., IL-17 antibody or antigen binding fragment thereof). In preferred embodiments, the pharmaceutical compositions for use in the disclosed methods comprise secukinumab at 150 mg/ml. Pharmaceutical compositions for use in the disclosed methods may be manufactured in conventional manner. In one embodiment, the pharmaceutical composition is provided in lyophilized form. For immediate administration it is dissolved in a suitable aqueous carrier, for example sterile water for injection or sterile buffered physiological saline. If it is considered desirable to make up a solution of larger volume for administration by infusion rather than a bolus injection, may be advantageous to incorporate human serum albumin or the patient’s own heparinized blood into the saline at the time of formulation. The presence of an excess of such physiologically inert protein prevents loss of antibody by adsorption onto the walls of the container and tubing used with the infusion solution. If albumin is used, a suitable concentration is from 0.5 to 4.5% by weight of the saline solution. Other formulations comprise ready -to-use liquid formulations.

Antibodies, e.g., antibodies to IL-17, are typically formulated either in ready-to-use aqueous forms for parenteral administration or as lyophilisates for reconstitution with a suitable diluent prior to administration. In preferred embodiments of the disclosed methods and uses, the IL-17 antagonist, e.g., IL-17 antibody, e.g., secukinumab, is formulated as ready-to-use (i.e., a stable ready-to-use) liquid pharmaceutical formulation. In some embodiments of the disclosed methods and uses, the IL-17 antagonist, e.g., IL-17 antibody, e.g., secukinumab, is formulated as a lyophilisate. Suitable lyophilisate formulations can be reconstituted in a small liquid volume (e.g., 2 mL or less, e.g., 2 mL, 1 mL, etc.) to allow subcutaneous administration and can provide solutions with low levels of antibody aggregation. The use of antibodies as the active ingredient of pharmaceuticals is now widespread, including the products HERCEPTIN™ (trastuzumab), RITUXAN™ (rituximab), SYNAGIS™ (palivizumab), etc. Techniques for purification of antibodies to a pharmaceutical grade are known in the art. When a therapeutically effective amount of an IL-17 antagonist, e.g., IL-17 binding molecules (e.g., IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecules (e.g., IL-17 antibody or antigen-binding fragment thereof) is administered by intravenous, cutaneous or subcutaneous injection, the IL-17 antagonist will be in the form of a pyrogen-free, parenterally acceptable solution. A pharmaceutical composition for intravenous, cutaneous, or subcutaneous injection may contain, in addition to the IL-17 antagonist, an isotonic vehicle such as sodium chloride, Ringer's solution, dextrose, dextrose and sodium chloride, lactated Ringer's solution, or other vehicle as known in the art. In practicing some of the methods of treatment or uses of the present disclosure, a therapeutically effective amount of an IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof) is administered to a patient, e.g., a mammal (e.g., a human). While it is understood that the disclosed methods provide for treatment of TED (e.g., GO) patients using an IL-17 antagonist (e.g., secukinumab), this does not preclude that, if the patient is to be ultimately treated with an IL-17 antagonist, such IL-17 antagonist therapy is necessarily a monotherapy. Indeed, if a patient is selected for treatment with an IL-17 antagonist, then the IL-17 antagonist (e.g., secukinumab) may be administered in accordance with the methods of the disclosure either alone or in combination with other agents and therapies for treating TED (e.g., GO) patients, e.g., in combination with at least one additional TED agent or TED therapy. When co-administered with one or more additional TEG agents or TED therapy, an IL-17 antagonist may be administered either simultaneously with the other agent, or sequentially. If administered sequentially, the attending health care professional will decide on the appropriate sequence of administering the IL-17 antagonist in combination with other agents and the appropriate dosages for co-delivery.

Various TED therapies may be beneficially combined with the disclosed IL-17 antibodies, such as secukinumab, during treatment of TED (e.g., GO). Non-limiting examples include TED (e.g., GO) agents (e.g., small molecules, biological therapies, etc.), TED (e.g., GO) modalities (e.g., radiotherapy, decompressive surgery), and combinations thereof. These include, e.g., biological agents, e.g., TNF alpha inhibitors, such as adalimumab, infliximab, certolizumab and etanercept, alefacept, briakinumab, otelixizumab, efalizumab, ustekinumab, ixekizumab, brodalumab, guselkumab, toclizumab risankizumab, teprotumumab, tildrakizumab, non-biological immunomodulating treatments, e.g., methotrexate, apremilast, systemic corticosteroids, cyclosporine, cyclophosphamide, sulphasalazine, azathioprin, mycophenolate mofetil, mycophenolate sodium, radiotherapy (e.g., external beam orbital radiation, iodine radiotherapy), selenium supplements, artificial tears, decompressive surgery, diuretics, methimazole, steroids (e.g., high dose pulse i.v. steroid therapy using, e.g., prednisone, methylprednisone, prednisolone, methylprednisolone), propylthiouracil, allograft, celecoxib, i.v. immunglobulins, P³² brachytherapy, pioglitazone, somatostatin analogs (e.g., lanreotide, octreotide), doxycycline, RVT-1401, atorvastatin, ASTED, carbimazole, bimatoprost, esomeprazole, prostaglandin analog, timolol, LAB4, azithromycin, hyaluronic acid, botulinum toxin, triamcinolone, simvastatin, blepharotomu, metformin, insulin-like growth factor- 1 receptor inhibitors, diclofenac, LIPO-102, etc.

Preferred TED therapies for use in the disclosed kits and methods in combination with the IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen binding fragment thereof) are corticosteroids (e.g., high dose IV methylprednisolone pulse therapy), radiotherapies (e.g., orbital beam radiotherapy, radioiodine therapy), cyclosporine, rituxumab, methotrexate, mycophenolate (mofetil or salt), teprotumumab, tocilizumab, or any combination thereof.

A skilled artisan will be able to discern the appropriate dosages of the above TED agents for co-delivery with the disclosed IL-17 antibodies, such as secukinumab.

An IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) is conveniently administered parenterally, e.g., intravenously (e.g., into the antecubital or other peripheral vein), intramuscularly, or subcutaneously. The duration of intravenous (IV) therapy using a pharmaceutical composition of the present disclosure will vary, depending on the severity of the disease being treated and the condition and personal response of each individual patient. Also contemplated is subcutaneous (SC) therapy using a pharmaceutical composition of the present disclosure. The health care provider will decide on the appropriate duration of IV or SC therapy and the timing of administration of the therapy, using the pharmaceutical composition of the present disclosure. In preferred embodiments, the IL-17 antagonist (e.g., secukinumab) is administered via the subcutaneous (SC) route.

The IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) may be administered to the patient (e.g., a patient having TED, e.g., GO) SC, e.g., at about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) weekly during weeks 0, 1, 2, 3, and 4, and thereafter administered to the patient SC, e.g., at about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) monthly (every 4 weeks), beginning during week 8. In this manner, the patient is dosed SC with about 150 mg - about 300 mg (e.g., about 150 mg or about 300 mg) of the IL-17 antagonist (e.g., secukinumab) during weeks 0, 1, 2, 3, 4, 8, 12, 16, 20, etc.

The IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) may be administered SC to the patient (e.g., a patient having TED, e.g., GO), e.g., at about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) weekly during weeks 0, 1, 2, 3, and 4, and thereafter administered to the patient SC, e.g., at about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) every 2 weeks, beginning during week 6. In this manner, the patient is dosed SC with about 150 mg - about 300 mg (e.g., about 150 mg or about 300 mg) of the IL-17 antagonist (e.g., secukinumab) during weeks 0, 1, 2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, etc.

Alternatively, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be administered intravenously (IV) to the patient (e.g., a patient having TED, e.g., GO). Preferred IV regimens (dose and administration scheme) for use with the disclosed IL-17 antagonists to treat TED, e.g., GO are provided in Table 2.

Table 2: Preferred IV/IV regimens for use in the disclosed methods employing an IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof).

Alternatively, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be administered intravenously (IV) to the patient (e.g., a patient having TED, e.g., GO). Preferred IV regimens (dose and administration scheme) for use with the disclosed IL-17 antagonists to treat TED, e.g., GO are provided in Table 3.

Table 3: Alternative preferred IV/IV regimens for use in the disclosed methods employing an IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof).

In some embodiments, it is contemplated that the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 4 mg/kg - about 9 mg/kg (preferably about 6 mg/kg) once during week 0, and thereafter, as an IV dose of about 2 - about 4 mg/kg (preferably about 3 mg/kg) every 4 weeks (monthly), beginning during week 4. In this manner, the patient is dosed IV with about 4 mg/kg - about 9 mg/kg (e.g., about 6 mg/kg) of the IL-17 antagonist (e.g., secukinumab) during weeks 0, 4, 8, 12, 16, 20, etc. In a preferred embodiment, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered to the patient IV at a dose of about 6 mg/kg once during week 0, and thereafter, as an IV dose of about 3 mg/kg every 4 weeks (monthly), beginning during week 4. In this manner, the patient is dosed IV with about 6 mg/kg of the IL-17 antagonist (e.g., secukinumab) during weeks 0, and thereafter, as an IV dose of about 3 mg/kg during week 4, 8, 12, 16, 20, etc.

In some embodiments, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 4 mg/kg - about 9 mg/kg (preferably about 6 mg/kg) once during week 0, and thereafter, an IV dose of about 2.0 - about 4 mg/kg (preferably about 3 mg/kg) every 8 weeks (every other month), beginning during week 4.

In some embodiments, it is contemplated that the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 4 mg/kg - about 9 mg/kg (preferably about 8 mg/kg) once during week 0, and thereafter, as an IV dose of about 2 - about 4 mg/kg (preferably about 4 mg/kg) every 4 weeks (monthly), beginning during week 4. In a preferred embodiment, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered to the patient IV at a dose of about 8 mg/kg once during week 0, and thereafter, as an IV dose of about 4 mg/kg every 4 weeks (monthly), beginning during week 4.

In some embodiments, it is contemplated that the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 4 mg/kg - about 9 mg/kg (preferably about 8 mg/kg) twice during week 0 and week 2, and thereafter, as an IV dose of about 2 - about 4 mg/kg (preferably about 4 mg/kg) every 4 weeks (monthly), beginning during week 4. In a preferred embodiment, the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) is administered to the patient IV at a dose of about 8 mg/kg during week 0 and week 2, and thereafter, as an IV dose of about 4 mg/kg every 4 weeks (monthly), beginning during week 4.

In some embodiments, it is contemplated that the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 10 mg/kg monthly (every 4 weeks). In some embodiments, it is contemplated that the IL-17 antagonist (e.g., IL-17 antibody or antigen binding fragment thereof, such as secukinumab) may be IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 10 mg/kg every two months (every 8 weeks).

In some embodiments, it is contemplated that the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, such as secukinumab) may be IV administered to the patient (e.g., a patient having TED, e.g., GO) at a dose of about 10 mg/kg monthly (every 4 weeks) during week 0, 4, 8, and thereafter at a dose of about 10 mg/kg (e.g., 10 mg/kg) every two months (every 8 weeks), beginning during week 16. Alternatively, the IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) may be administered to the patient (e.g., a patient having TED, e.g., GO) without a loading regimen, e.g., the antagonist may be administered to the patient SC at about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) every four weeks. In this manner, the patient is dosed SC with about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) of the IL-17 antagonist (e.g., secukinumab) during weeks 0,

4, 8, 12, 16, 20, etc.

Alternatively, the IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) may be administered to the patient (e.g., a patient having TED, e.g., GO) without a loading regimen, e.g., the antagonist may be administered to the patient IV at about 2.5 - about 4 mg/kg (preferably about 3 mg/kg) every month or at about 2.5 - about 4 mg/kg (preferably about 3 mg/kg) every two months.

Alternatively, the IL-17 antagonists, e.g., IL-17 antibodies, e.g., secukinumab, can also be delivered orally (e.g., into the intestinal lumen using Rani Therapeutics technology, e.g., technology set forth in US Patent Nos. 8,734,429; 9,492,378; 9,456,988; 9,415,004; 9,6297,99; 9,757,548; 9,757,514; 9,402,806; US Pub. Appln. 2017/0189659, 2017/0100459).

It will be understood that dose escalation may be required for certain patients, e.g., a patient having TED, e.g., GO, who display inadequate response (e.g., partial response, failed response, or loss of response over time, e.g., as measured by any of the TED/GO scoring systems disclosed herein) to treatment with the IL-17 antagonists, e.g., IL-17 binding molecules (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecules (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) by week 10, week 12, week 14, week 16, week 18, week 20, week 22, week 24, week 48, week 52, or week 104 of treatment. Thus, SC dosages of secukinumab may be greater than about 150 mg - about 300 mg SC, e.g., about 200 mg, about 250 mg (in the case of an original 150 mg dose), about 350 mg, about 450 mg (in the case of an original 300 mg dose), etc.; similarly, IV dosages may be greater than about 2 mg/kg - about 9 mg/kg, e.g., about 2.5 mg/kg, about 3 mg/kg, 4 mg/kg, about 5 mg/kg, about 6 mg/kg (e.g., in the case of an original 2 mg/kg dose), about 9.5 mg/kg, 10 mg/kg, 11 mg/kg, 12 mg/kg, 15 mg/kg, 20 mg/kg, 25 mg/kg, 30 mg/kg, 35 mg/kg (in the case of an original 9 mg/kg mg dose), etc.

Similarly, more frequent dosing may be used (e.g., during the maintenance regimen) in certain patients, e.g., a patient having an inadequate response (e.g., partial response, failed response, or loss of response over time) to treatment with the IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab. These patients may be switched to more frequent administration (rather than increased dose), e.g., switched from administration of the IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab, every 4 weeks (monthly; Q4w) to administration every two weeks (Q2w) or every week (Qlw), or from administration every 2 weeks (Q2w) to administration every week (Qlw). This switch may be done as determined necessary by a health care professional, e.g., at week 10, week 12, week 14, week 16, week 18, week 20, week 22, week 24, week 48, week 52, or week 104 of treatment.

Thus, in some embodiments, if the patient does not adequately respond to treatment with the IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) following a period of every four week administration, then the IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) is administered to the patient every two weeks (Q2w) as a maintenance regimen. In the aforementioned embodiments, the “period of every four week administration” is determined by a health care professional based on patient response. For example, assuming an induction regimen (e.g., SC induction, e.g., using 150 mg or 300 mg secukinumab) dosing during week 0, 1, 2, 3, and 4, with a first Q4w maintenance dose at week 8, a health care professional may switch a patient from Q4w to Q2w maintenance treatment with the first Q2w administration occurring at week 10, week 14, week 18, week 22, week 26, week 30, week 54, etc. As another example, assuming an induction regimen (e.g., SC induction, e.g., using 150 mg or 300 mg secukinumab) of weekly dosing during week 0, 1, 2, 3, and 4, with a first Q4w maintenance dose at week 8, a health care professional may switch a patient from Q4w to Q2w maintenance treatment with the first Q2w administration occurring by week 12, week 16, week 20, week 24, week 28, week 52, etc.

It will also be understood that dose reduction may also be used for certain patients, e.g., a patient having TED, e.g., GO, who displays a particularly robust treatment response, or an adverse event / response to treatment with the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab). Thus, dosages of the IL-17 antagonist (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab), may be lowered to less than about 150 mg - about 300 mg SC, e.g., about 250 mg, about 200 mg, about 150 mg (in the case of an original 300 mg dose); about 100 mg, about 50 mg (in the case of an original 150 mg dose), etc. Similarly, IV dosages may be lowered to less than about 8 mg/kg, e.g., about 7 mg/kg, 5 mg/kg, 4 mg/kg, 3 mg/kg, 2 mg/kg, 1 mg/kg, etc. In some embodiments, the IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 receptor antibody or antigen-binding fragment thereof) may be administered to the patient at an initial dose of 300 mg or 150 mg delivered SC, and the dose is then escalated to about 450 mg (in the case of an original 300 mg dose) or about 300 mg (in the case of an original 150 mg dose) if needed, as determined by a health care professional.

Similarly, less frequent dosing may be used during the maintenance regimen in certain patients, e.g., a patient having a particularly robust treatment response, or an adverse event / response to treatment with the IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab. These patients may be switched to less frequent administration (rather than decreased dose), e.g., switched from administration of the IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab, every 4 weeks (monthly; Q4w) to administration every six weeks (Q6w) or eight weeks (Q8w), or from administration of the IL-17 antibody or antigen binding fragment thereof, e.g., secukinumab, every 2 weeks (monthly; Q2w) to administration every four weeks (Q4w) or every six weeks (Q6w). This switch may be done as determined necessary by a health care professional, e.g., at week 10, week 12, week 14, week 16, week 18, week 20, week 22, week 24, week 48, week 52, or week 104 of treatment.

Thus, in some embodiments, if the patient adequately responds to treatment with the IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) following a period of every two week (Q2w) administration, then the IL-17 antibody or antigen-binding fragment thereof (e.g., secukinumab) is administered to the patient every four weeks (Q4w) as a maintenance regimen. In the aforementioned embodiments, the “period of every four week administration” is determined by a health care professional based on patient response. For example, assuming an induction regimen (e.g., SC induction, e.g., using 150 mg or 300 mg secukinumab) dosing during week 0, 1, 2, 3, and 4, with a first Q2w maintenance dose at week 6, a health care professional may switch a patient from Q2w to Q4w maintenance treatment with the first Q4w administration occurring at week 8, week 10, week 12, week 14, week 16, week 18, week 20, week 22, week 24, week 52, etc. As another example, assuming an induction regimen (e.g., SC induction, e.g., using 150 mg or 300 mg secukinumab) of weekly dosing during week 0, 1, 2, 3, and 4, with a first Q2w maintenance dose at week 6, a health care professional may switch a patient from Q24w to Q4w maintenance treatment with the first Q4w administration occurring by week 8, week 10, week 12, week 14, week 16, week 18, week 20, week 22, week 24, week 52, etc.

As used herein, “fixed dose” refers to a flat dose, i.e., a dose that is unchanged regardless of a patient’s characteristics. Thus, a fixed dose differs from a variable dose, such as a body- surface area-based dose or a weight-based dose (typically given as mg/kg). In some embodiments of the disclosed methods, uses, pharmaceutical compositions, kits, etc., the TED, e.g., GO, patient is administered fixed doses of the IL-17 antibody, e.g., fixed doses of secukinumab, e.g., fixed doses of about 75 mg - about 450 mg secukinumab, e.g., about 75 mg, about 150 mg, about 300 mg, about 400 mg or about 450 mg secukinumab. Alternatively, in some embodiments, the TED, e.g., GO, patient is administered a weight-based dose, e.g., a dose given in mg based on patient weight in kg (mg/kg).

The timing of dosing is generally measured from the day of the first dose of secukinumab (which is also known as “baseline”). However, health care providers often use different naming conventions to identify dosing schedules, as shown in Table 3.

Table 3: Common naming conventions for dosing regimens. Bolded items refer to the naming convention used herein.

Notably, week zero may be referred to as week one by some health care providers, while day zero may be referred to as day one by some health care providers. Thus, it is possible that different health care professionals will designate, e.g., a dose as being given during week 3 / on day 21, during week 3 / on day 22, during week 4 / on day 21, during week 4 / on day 22, while referring to the same dosing schedule. For consistency, the first week of dosing will be referred to herein as week 0, while the first day of dosing will be referred to as day 1. However, it will be understood by a skilled artisan that this naming convention is simply used for consistency and should not be construed as limiting, i.e., weekly dosing is the provision of a weekly dose of the IL-17 antibody regardless of whether the health care professional refers to a particular week as “week 1” or “week 2”.

In a one dosing regimen, the antibody is administered during week 0, 1, 2, 3, 4, 8, 12, 16, 20, etc. Some providers may refer to this regimen as weekly for five weeks and then monthly (or every 4 weeks) thereafter, beginning during week 8, while others may refer to this regimen as weekly for four weeks and then monthly (or every 4 weeks) thereafter, beginning during week 4. It will be appreciated by a skilled artisan that administering a patient an injection at weeks 0, 1, 2 and 3, followed by once monthly dosing starting at week 4 is the same as: 1) administering the patient an injection at weeks 0, 1, 2, 3, and 4, followed by once monthly dosing starting at week 8; 2) administering the patient an injection at weeks 0, 1, 2, 3 and 4 followed by dosing every 4 weeks; and 3) administering the patient an injection at weeks 0, 1, 2, 3 and 4 followed by monthly administration.

In one embodiment, the antibody is administered to a TED, e.g., GO, patient during week 0, 1, 2, 3, 4, 6, 8, 10, 12, etc. Some providers may refer to this regimen as weekly for five weeks and then every other week (or every 2 weeks) thereafter, beginning during week 6, while others may refer to this regimen as weekly for four weeks and then every other week (or every 2 weeks) thereafter, beginning during week 4. It will be appreciated by a skilled artisan that administering a patient an injection at weeks 0, 1, 2 and 3, followed by administration every other week (or every 2 weeks) starting at week 4 is the same as: 1) administering the patient an injection at weeks 0, 1, 2, 3, and 4, followed by dosing every other week (or every 2 weeks) starting at week 6; 2) administering the patient an injection at weeks 0, 1, 2, 3 and 4 followed by dosing every 2 weeks; and 3) administering the patient an injection at weeks 0, 1, 2, 3 and 4 followed by every other week administration.

As used herein, the phrase “formulated at a dosage to allow [route of administration] delivery of [a designated dose]” is used to mean that a given pharmaceutical composition can be used to provide a desired dose of an IL-17 antagonist, e.g., an IL-17 antibody, e.g., secukinumab, via a designated route of administration (e.g., SC or IV). As an example, if a desired SC dose is 300 mg, then a clinician may use 2 ml of an IL-17 antibody formulation having a concentration of 150 mg/ml, 1 ml of an IL-17 antibody formulation having a concentration of 300 mg/ml, 0.5 ml of an IL-17 antibody formulation having a concentration of 600 mg/ml, etc. In each such case, these IL-17 antibody formulations are at a concentration high enough to allow subcutaneous delivery of the IL-17 antibody. Subcutaneous delivery typically requires delivery of volumes of less than or equal to about 2 ml, preferably a volume of about 1 ml or less. Preferred formulations are ready-to-use liquid pharmaceutical compositions comprising about 25 mg/mL to about 150 mg/mL secukinumab, about 10 mM to about 30 mM histidine pH 5.8, about 200 mM to about 225 mM trehalose, about 0.02% polysorbate 80, and about 2.5 mM to about 20 mM methionine.

As used herein, the phrase “container having a sufficient amount of the IL-17 antagonist to allow delivery of [a designated dose]” is used to mean that a given container (e.g., vial, pen, syringe) has disposed therein a volume of an IL-17 antagonist (e.g., as part of a pharmaceutical composition) that can be used to provide a desired dose. As an example, if a desired dose is 300 mg, then a clinician may use 2 mL from a container that contains an IL-17 antibody formulation with a concentration of 150 mg/mL, 1 mL from a container that contains an IL-17 antibody formulation with a concentration of 300 mg/mL, 0.5 mL from a container contains an IL-17 antibody formulation with a concentration of 600 mg/ml, etc. In each such case, these containers have a sufficient amount of the IL-17 antagonist to allow delivery of the desired 300 mg dose.

In some embodiments of the disclosed uses, methods, and kits, the dose of the IL-17 antibody (e.g., secukinumab) or an antigen-binding fragment thereof is about 300 mg, the IL-17 antibody (e.g., secukinumab) or an antigen-binding fragment thereof is comprised in a liquid pharmaceutical formulation at a concentration of 150 mg/ml, and 2 ml of the pharmaceutical formulation is disposed within two pre-filled syringes, injection pens, or autoinjectors, each having 1 ml of the pharmaceutical formulation. In this case, the patient receives two injections of 1 ml each, for a total dose of 300 mg, during each administration. In some embodiments, the dose of the IL-17 antibody (e.g., secukinumab) or an antigen-binding fragment thereof is about 300 mg, the IL-17 antibody (e.g., secukinumab) or an antigen-binding fragment thereof is comprised in a liquid pharmaceutical formulation at a concentration of 150 mg/ml, and 2 ml of the pharmaceutical formulation is disposed within an autoinjector or PFS. In this case, the patient receives one injection of 2 ml, for a total dose of 300 mg, during each administration. In methods employing one injection of 2 ml (e.g., via a single PFS or autoinjector) (i.e., a “single dose preparation”), the drug exposure (AUC) and maximal concentration (Cmax) is equivalent (similar to, i.e., within the range of acceptable variation according to US FDA standards) to methods employing two injections of 1 ml (e.g., via two PFSs or two AIs) (i.e., a “multiple-dose preparation”).

Disclosed herein are methods of treating Thyroid Eye Disease (TED), comprising subcutaneously (SC) administering to a patient in need thereof a dose of about 150 mg - about 300 mg of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, weekly during weeks 0, 1, 2, 3, and 4, and every four weeks thereafter, beginning during week 8, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

Also disclosed herein is an IL-17 antibody (e.g. secukinumab) or an antigen-binding fragment thereof, for use in treating TED, e.g., GO, which is to be subcutaneously (SC) administered to a patient in need thereof at a dose of about 150 mg - about 300 mg weekly during weeks 0, 1, 2, 3, and 4, and thereafter SC at a dose of about 150 mg - about 300 mg monthly (every 4 weeks), beginning during week 8. Also disclosed herein is an IL-17 antibody (e.g. secukinumab) or an antigen-binding fragment thereof, for use in the manufacture of a medicament for treating TED, e.g., GO, which is to be subcutaneously (SC) administered to a patient in need thereof at a dose of about 150 mg - about 300 mg weekly during weeks 0, 1, 2, 3, and 4, and thereafter SC at a dose of about 150 mg - about 300 mg monthly (every 4 weeks), beginning during week 8.

Disclosed herein are methods of treating of treating Thyroid Eye Disease (TED), comprising subcutaneously (SC) administering to a patient in need thereof a dose of about 150 mg - about 300 mg of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, weekly during weeks 0, 1, 2, 3, and 4, and every two weeks thereafter, beginning during week 6, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

Also disclosed herein is an IL-17 antibody (e.g. secukinumab) or an antigen-binding fragment thereof, for use in treating TED, e.g., GO, which is to be subcutaneously (SC) administered to a patient in need thereof at a dose of about 150 mg - about 300 mg weekly during weeks 0, 1, 2, 3, and 4, and thereafter SC at a dose of about 150 mg - about 300 mg every 2 weeks, beginning during week 6. Also disclosed herein is an IL-17 antibody (e.g. secukinumab) or an antigen-binding fragment thereof, for use in the manufacture of a medicament for treating TED, e.g., GO, which is to be subcutaneously (SC) administered to a patient in need thereof at a dose of about 150 mg - about 300 mg weekly during weeks 0, 1, 2, 3, and 4, and thereafter SC at a dose of about 150 mg - about 300 mg every 2 weeks, beginning during week 6.

Disclosed herein are methods of treating of treating Thyroid Eye Disease (TED), comprising intravenously (IV) administering to a patient in need thereof a dose of about 4 mg/kg - about 9 mg/kg (preferably about 6 mg/kg or 7 mg/kg) of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, once during week 0, and thereafter administering an IV dose of about 2 mg/kg - about 4 mg/kg (preferably about 3 mg/kg or 3.5 mg/kg) of the IL-17 antibody, or an antigen-binding fragment thereof every four weeks, beginning during week 4, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

Also disclosed herein is an IL-17 antibody (e.g. secukinumab) or an antigen-binding fragment thereof, for use in treating TED, e.g., GO, which is to be intravenously (IV) administered to a patient in need thereof at a dose of about 4 mg/kg to about 9 mg/kg (preferably about 6 mg/kg) once during week 0, and thereafter IV at a dose of about 2 mg/kg to about 4 mg/kg (preferably about 3 mg/kg) monthly (every 4 weeks), beginning during week 4. Also disclosed herein is an IL-17 antibody (e.g. secukinumab) or an antigen-binding fragment thereof, for use in the manufacture of a medicament for treating TED, e.g., GO , which is to be intravenously (IV) administered to a patient in need thereof at a dose of about 4 mg/kg to about 9 mg/kg (preferably about 6 mg/kg) once during week 0, and thereafter IV at a dose of about 2 mg/kg to about 4 mg/kg (preferably about 3 mg/kg) monthly (every 4 weeks), beginning during week 4.

In some embodiments of the disclosed methods, uses, compositions and kits, the IL-17 antibody or antigen-binding fragment thereof binds to an epitope of an IL-17 homodimer having two mature IL-17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vail 24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain, wherein the IL-17 antibody has a KD of about 100-200 pM as measured by a biosensor system (e.g., BIACORE), and wherein the IL-17 antibody has an in vivo half-life of about 23 to about 30 days.

In some embodiments of the disclosed methods, uses, compositions and kits, if the patient does not adequately respond to treatment with the IL-17 antibody or antigen-binding fragment thereof following a period of every four week administration, then the IL-17 antibody or antigen binding fragment thereof is administered to the patient every two weeks as a maintenance regimen.

In some embodiments of the disclosed methods, uses, compositions and kits, the dose of IL-17 antibody or antigen-binding fragment thereof is 150 mg.

In some embodiments of the disclosed methods, uses, compositions and kits, the dose of IL-17 antibody or antigen-binding fragment thereof is 300 mg.

In some embodiments of the disclosed methods, uses, compositions and kits, prior to treatment with the IL-17 antibody or antigen-binding fragment thereof, the patient is steroid naive, e.g., corticosteroid-naive.

In some embodiments of the disclosed methods, uses, compositions and kits, prior to treatment with the IL-17 antibody or antigen-binding fragment thereof, the patient did not adequately respond to treatment with corticosteroid therapy (e.g., high dose IV methylprednisolone pulse therapy), orbital radiotherapy (e.g., radioiodine), cyclosporine, rituxumab, methotrexate, mycophenolate, teprotumumab, tocilizumab, and or any combination thereof.

In some embodiments of the disclosed methods, uses, compositions and kits, prior to treatment with the IL-17 antibody or antigen-binding fragment thereof, the patient was refractory to corticosteroid therapy (e.g., high dose IV methylprednisolone pulse therapy) or the patient did not adequately respond to treatment with a corticosteroid.

In some embodiments of the disclosed methods, uses, compositions and kits, during treatment with the IL-17 antibody or antigen-binding fragment thereof, the patient is concomitantly administered at least one of a corticosteroid (e.g., high dose IV methylprednisolone pulse therapy), radiotherapy (e.g., orbital beam radiotherapy, radioiodine therapy), cyclosporine, rituxumab, methotrexate, mycophenolate (mofetil or salt), teprotumumab, tocilizumab, or any combination thereof.

In some embodiments of the disclosed methods, uses, compositions and kits, during treatment with the IL-17 antibody or antigen-binding fragment thereof, the patient is concomitantly administered at least one steroid.

In some embodiments of the disclosed methods, uses, compositions and kits, the patient has Graves’ Disease or Hashimoto’s Thyroiditis. In some embodiments of the disclosed methods, uses, compositions and kits, the patient has Graves’ Orbitopathy (GO).

In some embodiments of the disclosed methods, uses, compositions and kits, the patient has moderate-to-severe TED (e.g., moderate-to-severe GO).

In some embodiments of the disclosed methods, uses, compositions and kits, the patient has active TED (e.g., moderate-to-severe GO).

In some embodiments of the disclosed methods, uses, compositions and kits, the patient has active moderate-to-severe TED (e.g., moderate-to-severe GO).

I some embodiments of the disclosed methods, uses, compositions and kits, the patient meets two or more of the following criteria: a) · Lid retraction > 2 mm; b) · Moderate or severe soft tissue involvement; c) · Exophthalmos > 3 mm above normal for race and gender; or d) · Inconstant or constant diplopia.

I some embodiments of the disclosed methods, uses, compositions and kits, the patient started to have TED symptoms less than 12 months before treatment.

I some embodiments of the disclosed methods, uses, compositions and kits, the patient has CAS > 4 (on a 7-point scale, with a score of > 3 indicating active TED) in the more severely affected eye.

In some embodiments of the disclosed methods, uses, compositions and kits, the patient; a) has > 2 point reduction in CAS; b) > 2 mm reduction in proptosis from baseline in the study eye, and c) no corresponding deterioration in CAS or proptosis (> 2 point/mm increase) in the fellow eye.

In some embodiments of the disclosed methods, uses, compositions and kits, the patient is an adult.

In some embodiments of the disclosed methods, uses, compositions and kits, the IL-17 antibody or antigen-binding fragment thereof is disposed in a pharmaceutical formulation, wherein said pharmaceutical formulation further comprises a buffer and a stabilizer.

In some embodiments of the disclosed methods, uses, compositions and kits, the pharmaceutical formulation is in liquid form. In some embodiments of the disclosed methods, uses, compositions and kits, the pharmaceutical formulation is in lyophilized form.

In some embodiments of the disclosed methods, uses, compositions and kits, the pharmaceutical formulation is disposed within at least one pre-filled syringe, at least one vial, at least one injection pen, or at least one autoinjector.

In some embodiments of the disclosed methods, uses, compositions and kits, the at least one pre-filled syringe, at least one vial, at least one injection pen, or at least one autoinjector is disposed within a kit, and wherein said kit further comprises instructions for use.

In some embodiments of the disclosed methods, uses, compositions and kits, the dose of the IL-17 antibody or antigen-binding fragment is 300 mg, which is administered to the patient as a single subcutaneous administration in a total volume of 2 milliliters (mL) from a formulation comprising 150 mg/ml of the IL-17 antibody or antigen-binding fragment, and wherein the pharmacological exposure of the patient to the IL-17 antibody or antigen-binding fragment is equivalent to the pharmacological exposure of the patient to the IL-17 antibody or antigen binding fragment using two separate subcutaneous administrations of a total volume of 1 ml each of the same formulation.

In some embodiments of the disclosed methods, uses, compositions and kits, the dose of the IL-17 antibody or antigen-binding fragment administered to the patient is 300 mg, which is administered as two separate subcutaneous administrations in a volume of 1 mL each from a formulation comprising 150 mg/ml of the IL-17 antibody or antigen-binding fragment

In some embodiments of the disclosed methods, uses, compositions and kits, the IL-17 antibody or antigen-binding fragment has a Tmax of about 7-8 days.

In some embodiments of the disclosed methods, uses, compositions and kits, the IL-17 antibody or antigen-binding fragment has an absolute bioavailablilty of about 60% - about 80%.

In some embodiments of the disclosed methods, uses, compositions and kits, the IL-17 antibody or antigen-binding fragment is a human monoclonal antibody.

In some embodiments of the disclosed methods, uses, compositions and kits, the IL-17 antibody or antigen-binding fragment is of the IgGi/kappa isotype.

In some embodiments, when the method is used to treat a population of patients, at least 60% of said patients achieve a 40% difference compared to placebo after 16 weeks of treatment.

In some embodiments, when the method is used to treat a population of patients, at least 70% of said patients achieve a 50% difference compared to placebo after 16 weeks of treatment.

In some embodiments of the disclosed methods, uses, compositions and kits, the patient is treated with the IL-17 antibody or antigen-binding fragment thereof for at least one year.

In preferred embodiments of the disclosure, the IL-17 antibody or antigen-binding fragment thereof is a monoclonal antibody.

In preferred embodiments of the disclosure, the IL-17 antibody or antigen-binding fragment thereof is a human or humanized antibody.

In preferred embodiments of the disclosure, the IL-17 antibody or antigen-binding fragment thereof is a human antibody.

In preferred embodiments of the disclosed methods, uses and kits, the IL-17 antibody or antigen-binding fragment is a human monoclonal antibody.

In preferred embodiments of the disclosure, the IL-17 antibody or antigen-binding fragment thereof is a human antibody of the IgGi subtype.

In preferred embodiments the IL-17 antibody or antigen-binding fragment thereof has a kappa light chain.

In preferred embodiments of the disclosure, the IL-17 antibody or antigen-binding fragment thereof is a human antibody of the IgGi kappa type.

In preferred embodiments of the disclosed methods, uses and kits, the IL-17 antibody or antigen-binding fragment has a Tmax of about 7-8 days.

In preferred embodiments of the disclosed methods, uses and kits, the IL-17 antibody or antigen-binding fragment has an absolute bioavailablilty of about 60%-about 80%.

In preferred embodiments of the disclosure, the IL-17 antibody or antigen-binding fragment thereof is secukinumab.

Disclosed herein are methods of treating an adult patient with Thyroid Eye Disease [TED], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every four weeks thereafter. Disclosed herein are methods of treating an adult patient with Thyroid Eye Disease [TED], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every two weeks thereafter. In preferred embodiments, the patient has moderate-to- severe active TED. In preferred embodiments, the patient has Graves’ Disease or Hashimoto’s Thyroiditis. Disclosed herein are methods of treating an adult patient with Graves’ Orbitopathy [GO], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every four weeks thereafter. Disclosed herein are methods of treating an adult patient with Graves’ Orbitopathy [GO], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every two weeks thereafter. In preferred embodiments, the patient has moderate-to- severe active GO.

Kits

The disclosure also encompasses kits for treating TED. Such kits comprise an IL-17 antagonist, e.g., IL-17 binding molecule (e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) or IL-17 receptor binding molecule (e.g., IL-17 antibody or antigen binding fragment thereof) (e.g., in liquid or lyophilized form) or a pharmaceutical composition comprising the IL-17 antagonist (described supra). Additionally, such kits may comprise means for administering the IL-17 antagonist (e.g., an autoinjector, a syringe and vial, a prefilled syringe, a prefilled pen) and instructions for use. These kits may contain additional therapeutic HS agents (described supra) for treating TED (e.g., GO), e.g., for delivery in combination with the enclosed IL-17 antagonist, e.g., IL-17 binding molecule, e.g., IL-17 antibody, e.g., secukinumab. Such kits may also comprise instructions for administration of the IL-17 antagonist (e.g., IL-17 antibody, e.g., secukinumab) to treat the patient having TED (e.g., GO). Such instructions may provide the dose (e.g., 3 mg/kg, 6 mg/kg, 300 mg, 450 mg), route of administration (e.g., IV, SC), and dosing regimen (e.g., weekly, monthly, weekly and then monthly, weekly and then every other week, etc.) for use with the enclosed IL-17 antagonist, e.g., IL-17 binding molecule, e.g., IL-17 antibody, e.g., secukinumab.

The phrase “means for administering” is used to indicate any available implement for systemically administering a drug to a patient, including, but not limited to, a pre-filled syringe, a vial and syringe, an injection pen, an autoinjector, an IV drip and bag, a pump, etc. With such items, a patient may self-administer the drug (i.e., administer the drug without the assistance of a health care professional) or a medical practitioner may administer the drug. In some embodiments, a total dose of 300 mg is to be delivered in a total volume of 2 ml, which is disposed in two PFSs or autoinjectors, each PFS or autoinjector containing a volume of 1 ml having 150 mg/ml of the IL-17 antibody, e.g., secukinumab. In this case, the patient receives two 1 ml injections (a multi-dose preparation). In preferred embodiments, a total dose of 300 mg is to be delivered in a total volume of 2 ml having 150 mg/ml of the IL-17 antibody, e.g., secukinumab, which is disposed in a single PFS or autoinjector. In this case, the patient receives one 2 ml injection (a single dose preparation).

Disclosed herein are kits for use treating a patient having TED (e.g., GO), comprising an IL-17 antagonist (e.g., IL-17 binding molecule, e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) and means for administering the IL-17 antagonist to the patent having TED (e.g., GO).

In some embodiments, the kit further comprises instructions for administration of the IL- 17 antagonist to a patient having TED (e.g., GO), wherein the instructions indicate that the IL-17 antagonist (e.g., IL-17 binding molecule, e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) is to be administered to the patient SC at a dose of about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) weekly during week 0, 1, 2, 3, and 4 and then every four weeks thereafter.

In some embodiments, the kit further comprises instructions for administration of the IL- 17 antagonist to a patient having TED (e.g., GO), wherein the instructions indicate that the IL-17 antagonist (e.g., IL-17 binding molecule, e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) is to be administered to the patient SC at a dose of about 150 mg - about 300 mg (e.g., about 150 mg, about 300 mg) weekly during week 0, 1, 2, 3, and 4 and then every two weeks thereafter.

In some embodiments, the kit further comprises instructions for administration of the IL- 17 antagonist to a patient having TED (e.g., GO), wherein the instructions indicate that the IL-17 antagonist (e.g., IL-17 binding molecule, e.g., IL-17 antibody or antigen-binding fragment thereof, e.g., secukinumab) is to be IV administered to the patient at a dose of about 4 mg/kg - about 9 mg/kg (preferably about 6 mg/kg) once during week 0, and thereafter, as an IV dose of about 2 - about 4 mg/kg (preferably about 3 mg/kg) every 4 weeks (monthly), beginning during week 4.

General

In preferred embodiments of the disclosed uses, methods and kits, the IL-17 antibody or antigen-binding fragment thereof is selected from the group consisting of: a) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of human IL-17 comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29; b) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of human IL-17 comprising Tyr43, Tyr44, Arg46, Ala79, Asp80; c) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of an IL-17 homodimer having two mature human IL- 17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain; d) an IL-17 antibody or antigen-binding fragment thereof that binds to an epitope of an IL-17 homodimer having two mature human IL-17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain, wherein the IL-17 antibody or antigen-binding fragment thereof has a KD of about 100-200 pM, and wherein the IL-17 antibody or antigen-binding fragment thereof has an in vivo half-life of about 23 to about 35 days; e) an IL-17 antibody that binds to an epitope of an IL-17 homodimer having two mature IL-17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain, wherein the IL-17 antibody has a KD of about 100-200 pM as measured by a biosensor system (e.g., Biacore^®), and wherein the IL-17 antibody has an in vivo half-life of about 23 to about 30 days; and f) an IL-17 antibody or antigen-binding fragment thereof comprising: i) an immunoglobulin heavy chain variable domain (VH) comprising the amino acid sequence set forth as SEQ ID NO:8; ii) an immunoglobulin light chain variable domain (VL) comprising the amino acid sequence set forth as SEQ ID NO: 10; iii) an immunoglobulin VH domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin VL domain comprising the amino acid sequence set forth as SEQ ID NO: 10; iv) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3; v) an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; vi) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13; vii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO:l, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; viii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6; ix) an immunoglobulin light chain comprising the amino acid sequence set forth as SEQ ID NO: 14; x) an immunoglobulin heavy chain comprising the amino acid sequence set forth as SEQ ID NO: 15; or xi) an immunoglobulin light chain comprising the amino acid sequence set forth as SEQ ID NO: 14 and an immunoglobulin heavy chain comprising the amino acid sequence set forth as SEQ ID NO: 15.

In the most preferred embodiments of the disclosed methods, kits, or uses, the IL-17 antibody or antigen-binding fragment thereof is a monoclonal antibody, preferably a human antibody, preferably a human IgGi antibody, most preferably secukinumab.

In the most preferred embodiments of the disclosed methods, kits, or uses, the dose size of the IL-17 antibody or antigen-binding fragment thereof (preferably secukinumab) is flat, the dose is 150 mg or 300 mg (most preferably 300 mg), the route of administration is SC, and the regimen is administration at week 0, 1, 2, 3, 4, 8, 12 etc. (weekly during week 0, 1, 2, 3, and 4, and then every four weeks, beginning during week 8) or administration at week 0, 1, 2, 3, 4, 6, 8, 10, 12 etc. (weekly during week 0, 1, 2, 3, and 4, and then every other week, beginning during week 6).

The details of one or more embodiments of the disclosure are set forth in the accompanying description above. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure, the preferred methods and materials are now described. Other features, objects, and advantages of the disclosure will be apparent from the description and from the claims. In the specification and the appended claims, the singular forms include plural references unless the context clearly dictates otherwise. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. All patents and publications cited in this specification are incorporated by reference.

Claims

WHAT IS CLAIMED IS:

1. A method of treating Thyroid Eye Disease (TED), comprising subcutaneously (SC) administering to a patient in need thereof a dose of about 150 mg - about 300 mg of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, weekly during weeks 0, 1,

2, 3, and 4, and every four weeks thereafter, beginning during week 8, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

2. A method of treating Thyroid Eye Disease (TED), comprising subcutaneously (SC) administering to a patient in need thereof a dose of about 150 mg - about 300 mg of an Interleukin (IL)-17 antibody, or an antigen-binding fragment thereof, weekly during weeks 0, 1, 2, 3, and 4, and every two weeks thereafter, beginning during week 6, wherein the IL-17 antibody or antigen-binding fragment thereof comprises: i) an immunoglobulin variable heavy (VH) domain comprising the amino acid sequence set forth as SEQ ID NO:8 and an immunoglobulin variable light (VL) domain comprising the amino acid sequence set forth as SEQ ID NO: 10; ii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 1, SEQ ID NO:2, and SEQ ID NO:3 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO: 6; or iii) an immunoglobulin VH domain comprising the hypervariable regions set forth as SEQ ID NO: 11, SEQ ID NO: 12 and SEQ ID NO: 13 and an immunoglobulin VL domain comprising the hypervariable regions set forth as SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6.

3. The method according to any of claims 1-2, wherein the IL-17 antibody or antigen binding fragment thereof binds to an epitope of an IL-17 homodimer having two mature IL-17 protein chains, said epitope comprising Leu74, Tyr85, His86, Met87, Asn88, Vall24, Thrl25, Prol26, Ilel27, Vall28, Hisl29 on one chain and Tyr43, Tyr44, Arg46, Ala79, Asp80 on the other chain, wherein the IL-17 antibody has a KD of about 100-200 pM as measured by a biosensor system (e.g., BIACORE), and wherein the IL-17 antibody has an in vivo half-life of about 23 to about 30 days.

4. The method according to claim 1, wherein, if the patient does not adequately respond to treatment with the IL-17 antibody or antigen-binding fragment thereof following a period of every four week administration, then the IL-17 antibody or antigen-binding fragment thereof is administered to the patient every two weeks as a maintenance regimen.

5. The method according to any of claims 1-2, wherein the dose of IL-17 antibody or antigen-binding fragment thereof is 150 mg.

6. The method according to any of claims 1-2, wherein the dose of IL-17 antibody or antigen-binding fragment thereof is 300 mg.

7. The method according to any of the above claims, wherein prior to treatment with the IL- 17 antibody or antigen-binding fragment thereof, the patient did not adequately respond to treatment with at least one of corticosteroid therapy (e.g., high dose IV methylprednisolone pulse therapy), orbital radiotherapy (e.g., radioiodine), cyclosporine, rituxumab, methotrexate, mycophenolate, teprotumumab, tocilizumab, or any combination thereof.

8 The method according to any of the above claims, wherein the patient is corticosteroid- naive.

9. The method according to any of the above claims, wherein prior to treatment with the IL- 17 antibody or antigen-binding fragment thereof, the patient was refractory to corticosteroid therapy (e.g., high dose IV methylprednisolone pulse therapy) or the patient did not adequately respond to treatment with a corticosteroid.

10. The method according to any of the above claims, wherein during treatment with the IL- 17 antibody or antigen-binding fragment thereof, the patient is concomitantly administered at least one of a corticosteroid (e.g., high dose IV methylprednisolone pulse therapy), radiotherapy (e.g., orbital beam radiotherapy, radioiodine therapy), cyclosporine, rituxumab, methotrexate, mycophenolate (mofetil or salt), teprotumumab, tocilizumab, or any combination thereof.

11. The method according to any of claims 2-10, wherein the patient has Graves’ Disease or Hashimoto’s Thyroiditis.

12. The method according to any of claims 2-10, wherein the patient has Graves’ Orbitopathy (GO).

13. The method according to any of claims 2-10, wherein the patient has ophthalmopathy associated with Hashimoto’s thyroiditis.

14. The method according to any of claims 2-11, wherein the patient has moderate-to-severe active TED.

15. The method according to claim 12, wherein the patient has moderate-to-severe active GO.

16. The method according to claim 13, wherein the patient has moderate-to-severe active ophthalmopathy associated with Hashimoto’s thyroiditis.

17. The method according to any of the above claims, wherein the patient meets two or more of the criteria: a) · Lid retraction > 2 mm; b) · moderate or severe soft tissue involvement; c) · exophthalmos > 3 mm above normal for race and gender; or d) · inconstant or constant diplopia.

18. The method according to claim 17, wherein following treatment with the IL-17 antibody or antigen-binding fragment thereof, the patient achieves: a) > 2 point reduction in CAS; b) > 2 mm reduction in proptosis from baseline in the study eye, and c) no corresponding deterioration in CAS or proptosis (> 2 point/mm increase) in the fellow eye.

19. The method according to any of the above claims, wherein the patient is an adult.

20. The method according to any of the above claims, wherein the IL-17 antibody or antigen binding fragment thereof is disposed in a pharmaceutical formulation, wherein said pharmaceutical formulation further comprises a buffer and a stabilizer.

21. The method according to claim 20, wherein the pharmaceutical formulation is in liquid form.

22. The method according to claim 20, wherein the pharmaceutical formulation is in lyophilized form.

23. The method according to any of claims 20-22, wherein the pharmaceutical formulation is disposed within at least one pre-filled syringe, at least one vial, at least one injection pen, or at least one autoinjector.

24. The method according to claim 23, wherein the at least one pre-filled syringe, at least one vial, at least one injection pen, or at least one autoinjector is disposed within a kit, and wherein said kit further comprises instructions for use.

25. The method according to any of claims 1-2 or 4-24, wherein the dose of the IL-17 antibody or antigen-binding fragment is 300 mg, which is administered to the patient as a single subcutaneous administration in a total volume of 2 mililiters (mL) from a formulation comprising 150 mg/ml of the IL-17 antibody or antigen-binding fragment, wherein the pharmacological exposure of the patient to the IL-17 antibody or antigen-binding fragment is equivalent to the pharmacological exposure of the patient to the IL-17 antibody or antigen binding fragment using two separate subcutaneous administrations of a total volume of 1 ml each of the same formulation.

26. The method according to any of claims 1-2 or 4-24, wherein the dose of the IL-17 antibody or antigen-binding fragment administered to the patient is 300 mg, which is administered as two separate subcutaneous administrations in a volume of 1 mL each from a formulation comprising 150 mg/ml of the IL-17 antibody or antigen-binding fragment

27. The method according to any of the above claims, wherein the IL-17 antibody or antigen binding fragment has a Tmax of about 7-8 days.

28. The method according to any of the above claims, wherein the IL-17 antibody or antigen binding fragment has an absolute bioavailability of about 60% - about 80%.

29. The method according to any of the above claims, wherein the IL-17 antibody or antigen binding fragment is a human monoclonal antibody.

30. The method according to any of the above claims, wherein the IL-17 antibody or antigen binding fragment is of the IgGi/kappa isotype.

31. The method according to any of the above claims, wherein, when said method is used to treat a population of patients, at least 60% of said patients achieve a 40% improvement after 16 weeks of treatment.

32. The method according to any of the above claims, wherein, when said method is used to treat a population of patients, at least 70% of said patients achieve a 70% improvement after 16 weeks of treatment.

33. The method according to any of the above claims, wherein the patient is treated with the IL-17 antibody or antigen-binding fragment thereof for at least one year.

34. The method according to any of the above claims, wherein the IL-17 antibody or antigen binding fragment is secukinumab.

35. A method of treating an adult patient with Thyroid Eye Disease [TED], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every four weeks thereafter.

36. A method of treating an adult patient with Thyroid Eye Disease [TED], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every two weeks thereafter.

37. The method according to either claim 35 or 36, wherein the patient has moderate-to- severe active TED.

38. The method according to either claim 35 or 36, wherein the patient has Graves’ Disease or Hashimoto’s Thyroiditis.

39. The method according to either claim 35 or 36, wherein the patient has Graves’ Orbitopathy (GO).

40. The method according to claim 39, wherein the patient has moderate-to-severe active GO.

41. The method according to either claim 35 or 36, wherein the patient has ophthalmopathy associated with Hashimoto’s thyroiditis.

42. The method according to claim 41, wherein the patient has moderate-to-severe active ophthalmopathy associated with Hashimoto’s thyroiditis.

43. A method of treating an adult patient with Graves’ Orbitopathy [GO], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every four weeks thereafter.

44. A method of treating an adult patient with Graves’ Orbitopathy [GO], comprising administering a dose of about 300 mg secukinumab subcutaneously to said patient during week 0, 1, 2, 3, and 4, and then every two weeks thereafter.

45. The method of either claim 43 or 44, wherein said patient has moderate-to-severe active GO.